Bioinformatics Advance Access originally published online on August 5, 2004
Bioinformatics 2005 21(2):263-265; doi:10.1093/bioinformatics/bth457
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Bioinformatics vol. 21 issue 2 © Oxford University Press 2005; all rights reserved.
Haploview: analysis and visualization of LD and haplotype maps
1 Whitehead Institute for Biomedical Research Cambridge, MA 02142, USA
2 MIT Media Lab Cambridge, MA 02139, USA
3 Broad Institute of Harvard and MIT Cambridge, MA, USA
*To whom correspondence should be addressed.
| Abstract |
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Summary: Research over the last few years has revealed significant haplotype structure in the human genome. The characterization of these patterns, particularly in the context of medical genetic association studies, is becoming a routine research activity. Haploview is a software package that provides computation of linkage disequilibrium statistics and population haplotype patterns from primary genotype data in a visually appealing and interactive interface.
Availability: http://www.broad.mit.edu/mpg/haploview/
Contact: jcbarret{at}broad.mit.edu
| INTRODUCTION |
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Knowledge of local linkage disequilibrium (LD) and common haplotype patterns in disease association and positional cloning studies is becoming increasingly widespread since it has become clear (Van Eerdewegh et al., 2002; Rioux et al., 2001; Geesaman et al., 2003; Stoll et al., 2004) that intelligent use of this information has the potential to make them much more comprehensive and efficient. Early studies identifying unexpected extent of correlation and structure in haplotype patterns (Reich et al., 2001; Daly et al., 2001; Gabriel et al., 2002) have led to the initiation of the Human Haplotype Map project (HapMap) to make this information available to all medical genetics researchers (International HapMap Consortium, 2003). Given the dramatic increase in the size and number of disease association studies worldwide and the enormous amount of public genotype data from HapMap, tools for analyzing, interpreting and visualizing these data are of critical importance to researchers everywhere.
Haploview is designed to provide a comprehensive suite of tools for haplotype analysis for a wide variety of dataset sizes. Haploview generates marker quality statistics, LD information, haplotype blocks, population haplotype frequencies and single marker association statistics in a user-friendly format. All the features are customizable and all computations performed in real time, even for datasets with hundreds of individuals and hundreds of markers.
| FEATURES |
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Haploview accepts input in a variety of formats. Pedigree data can be loaded as either partially or fully phased chromosomes or as unphased diplotypes in the standard Linkage format. The latter format also allows the user to specify family structure information as well as disease affection or case/control status. Marker information, including name and location is loaded separately. Haploview also directly accepts genotype data dumped from the Human HapMap website (http://www.hapmap.org). A graphical genome browser maintained at that site allows researchers to navigate to a particular region of the genome and dump HapMap genotype data for all genotyped markers in the selected region in a format accepted by Haploview.
Upon loading a dataset, the software presents to the user a series of marker genotyping quality metrics. These include a check for conformance with HardyWeinberg equilibrium, a tally of Mendelian inheritance errors and the percentage of individuals successfully genotyped for that marker. The program filters out markers which fall below a preset threshold for these tests. The user can adjust these thresholds as well as handpick markers to add or remove from the subsequent steps. At any time later in the process, the user may return to this quality control panel, add or remove additional markers, and have the changes immediately reflected in the ongoing analyses.
Haploview calculates several pairwise measures of LD, which it uses to create a graphical representation (Fig. 1). The user has the option to select one of several commonly used block definitions (Gabriel et al., 2002; Wang et al., 2002) to partition the region into segments of strong LD. Alternatively, the user may manually select groups of markers for subsequent haplotype analysis. This view also allows a number of different color schemes to represent the LD relationships. Further, the program allows the display of an analysis track above the LD plot, to display continuous variables such as recombination rate estimates (McVean et al., 2004) (Fig. 1).
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Once groups of markers are selected (either automatically or manually), the program generates haplotypes and their population frequencies (Fig. 1). This display shows lines to indicate transitions from one block to the next with frequency corresponding to the thickness of the line and also presents Hedrick's multiallelic D', which represents the degree of LD between two blocks, treating each haplotype within a block as an allele of that region. Again, customization is available for nearly all aspects of the display, including displaying alleles as letters, numbers or colored boxes and displaying only those haplotypes above an adjustable threshold in the population.
If affection status is included in the input file, Haploview also calculates the standard TDT statistic (for trio data) or simple
2 (for case/control data) for each marker that can be used for association studies. Future versions will include several haplotype-tag SNP selection methods as well as haplotype-based association testing and evaluation of significance using permutation testing. These final features allow the user to go from raw genotype data through exploring genetic associations in one easy to use software package. Haploview is maintained as an open source project (http://sourceforge.net/projects/haploview/), which allows external parties to add their own methods in addition to the continuing development by the authors.
Each of these views of the data is shown on a separate tab (Fig. 1), allowing the user to move from one to the next, with interactive modifications made by the user in any panel reflected in all the others. For example, one can return at any time to the review of marker quality and manually include or exclude individual markersthese changes are instantly reflected in the LD and haplotype panels. This provides the ability to analyze the data in real-time. The information on each panel is also able to be exported to a PNG for use in presentations or publications or dumped to a text file. Additionally, the program has a fully functional command-line mode, which allows users to run all the analyses without opening the GUI on one or more files at once.
| IMPLEMENTATION |
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Haploview is written entirely in Java, which means it is usable on any platform with Java 1.3 or later installed. Running on a 1.8 GHz Pentium 4 with 1 GB of RAM, Haploview can display a dataset with 200 markers genotyped in 400 individuals and adjust parameters with no noticeable delay. The program is also able to be used (from the command line) to do the LD calculations on very large datasets in comparatively small amounts of time. Haploview was able to compute 3.3 million pairwise LD values (comparisons of all markers closer than 500 KB in a 45 500 marker dataset) in 30 min.
Haploview uses a two marker EM (ignoring missing data) to estimate the maximum-likelihood values of the four gamete frequencies, from which the D', LOD and r 2 calculations derive. Haplotype phase and population frequency are inferred using a standard EM algorithm with a partitionligation approach for blocks with greater than 10 markers. Conformance with HardyWeinberg equilibrium is computed using an exact test (G.Abecasis and J.Wigginton, personal communication).
Received on June 23, 2004; revised on July 23, 2004; accepted on July 23, 2004
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J. Rojas, I. Fernandez, J. C. Pastor, M.-T. Garcia-Gutierrez, R.-M. Sanabria, M. Brion, B. Sobrino, L. Manzanas, A. Giraldo, E. Rodriguez-de la Rua, et al. Development of Predictive Models of Proliferative Vitreoretinopathy Based on Genetic Variables: The Retina 4 Project Invest. Ophthalmol. Vis. Sci., May 1, 2009; 50(5): 2384 - 2390. [Abstract] [Full Text] [PDF] |
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K. E. Roberts, M. B. Fallon, M. J. Krowka, R. S. Brown, J. F. Trotter, I. Peter, H. Tighiouart, J. A. Knowles, D. Rabinowitz, R. L. Benza, et al. Genetic Risk Factors for Portopulmonary Hypertension in Patients with Advanced Liver Disease Am. J. Respir. Crit. Care Med., May 1, 2009; 179(9): 835 - 842. [Abstract] [Full Text] [PDF] |
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I. D. Bezemer, A. R. Arellano, C. H. Tong, C. M. Rowland, H. A. Ireland, K. A. Bauer, J. Catanese, P. H. Reitsma, C. J.M. Doggen, J. J. Devlin, et al. F9 Malmo, factor IX and deep vein thrombosis Haematologica, May 1, 2009; 94(5): 693 - 699. [Abstract] [Full Text] [PDF] |
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L. Gao and K. C. Barnes Recent advances in genetic predisposition to clinical acute lung injury Am J Physiol Lung Cell Mol Physiol, May 1, 2009; 296(5): L713 - L725. [Abstract] [Full Text] [PDF] |
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E. Sonestedt, M. I. L. Ivarsson, S. Harlid, U. Ericson, B. Gullberg, J. Carlson, H. Olsson, H. Adlercreutz, and E. Wirfalt The Protective Association of High Plasma Enterolactone with Breast Cancer Is Reasonably Robust in Women with Polymorphisms in the Estrogen Receptor {alpha} and {beta} Genes J. Nutr., May 1, 2009; 139(5): 993 - 1001. [Abstract] [Full Text] [PDF] |
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A. Chio, J. C. Schymick, G. Restagno, S. W. Scholz, F. Lombardo, S.-L. Lai, G. Mora, H.-C. Fung, A. Britton, S. Arepalli, et al. A two-stage genome-wide association study of sporadic amyotrophic lateral sclerosis Hum. Mol. Genet., April 15, 2009; 18(8): 1524 - 1532. [Abstract] [Full Text] [PDF] |
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A. E. Hoffman, T. Zheng, R. G. Stevens, Y. Ba, Y. Zhang, D. Leaderer, C. Yi, T. R. Holford, and Y. Zhu Clock-Cancer Connection in Non-Hodgkin's Lymphoma: A Genetic Association Study and Pathway Analysis of the Circadian Gene Cryptochrome 2 Cancer Res., April 15, 2009; 69(8): 3605 - 3613. [Abstract] [Full Text] [PDF] |
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H. Chen, D. Yu, A. Luo, W. Tan, C. Zhang, D. Zhao, M. Yang, J. Liu, D. Lin, and Z. Liu Functional Role of S100A14 Genetic Variants and Their Association with Esophageal Squamous Cell Carcinoma Cancer Res., April 15, 2009; 69(8): 3451 - 3457. [Abstract] [Full Text] [PDF] |
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M. You, D. Wang, P. Liu, H. Vikis, M. James, Y. Lu, Y. Wang, M. Wang, Q. Chen, D. Jia, et al. Fine Mapping of Chromosome 6q23-25 Region in Familial Lung Cancer Families Reveals RGS17 as a Likely Candidate Gene Clin. Cancer Res., April 15, 2009; 15(8): 2666 - 2674. [Abstract] [Full Text] [PDF] |
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C. O. Jacob, J. Zhu, D. L. Armstrong, M. Yan, J. Han, X. J. Zhou, J. A. Thomas, A. Reiff, B. L. Myones, J. O. Ojwang, et al. Identification of IRAK1 as a risk gene with critical role in the pathogenesis of systemic lupus erythematosus PNAS, April 14, 2009; 106(15): 6256 - 6261. [Abstract] [Full Text] [PDF] |
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D. Rezgui, C. Williams, S. A Savage, S. N Prince, O. J Zaccheo, E Y. Jones, M. P Crump, and A B. Hassan Structure and function of the human Gly1619Arg polymorphism of M6P/IGF2R domain 11 implicated in IGF2 dependent growth J. Mol. Endocrinol., April 1, 2009; 42(4): 341 - 356. [Abstract] [Full Text] [PDF] |
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B.-L. Chang, S. D. Cramer, F. Wiklund, S. D. Isaacs, V. L. Stevens, J. Sun, S. Smith, K. Pruett, L. M. Romero, K. E. Wiley, et al. Fine mapping association study and functional analysis implicate a SNP in MSMB at 10q11 as a causal variant for prostate cancer risk Hum. Mol. Genet., April 1, 2009; 18(7): 1368 - 1375. [Abstract] [Full Text] [PDF] |
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N. S. Wratten, H. Memoli, Y. Huang, A. M. Dulencin, P. G. Matteson, M. A. Cornacchia, M. A. Azaro, J. Messenger, J. E. Hayter, A. S. Bassett, et al. Identification of a Schizophrenia-Associated Functional Noncoding Variant in NOS1AP Am J Psychiatry, April 1, 2009; 166(4): 434 - 441. [Abstract] [Full Text] [PDF] |
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J. R. Wendland, P. R. Moya, K. R. Timpano, A. P. Anavitarte, M. R. Kruse, M. G. Wheaton, R. F. Ren-Patterson, and D. L. Murphy A Haplotype Containing Quantitative Trait Loci for SLC1A1 Gene Expression and Its Association With Obsessive-Compulsive Disorder Arch Gen Psychiatry, April 1, 2009; 66(4): 408 - 416. [Abstract] [Full Text] [PDF] |
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J. T. Ou, S. Q. Tang, D. X. Sun, and Y. Zhang Polymorphisms of three neuroendocrine-correlated genes associated with growth and reproductive traits in the chicken Poult. Sci., April 1, 2009; 88(4): 722 - 727. [Abstract] [Full Text] [PDF] |
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S. Park, Y. Jamshidi, D. Vaideanu, M. Bitner-Glindzicz, S. Fraser, and J. C. Sowden Genetic Risk for Primary Open-Angle Glaucoma Determined by LMX1B Haplotypes Invest. Ophthalmol. Vis. Sci., April 1, 2009; 50(4): 1522 - 1530. [Abstract] [Full Text] [PDF] |
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H. Wang, N. P. Hays, S. K. Das, R. L. Craig, W. S. Chu, N. Sharma, and S. C. Elbein Phenotypic and Molecular Evaluation of a Chromosome 1q Region with Linkage and Association to Type 2 Diabetes in Humans J. Clin. Endocrinol. Metab., April 1, 2009; 94(4): 1401 - 1408. [Abstract] [Full Text] [PDF] |
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M. J. B. Villano, A. K. Huber, D. A. Greenberg, B. K. Golden, E. Concepcion, and Y. Tomer Autoimmune Thyroiditis and Diabetes: Dissecting the Joint Genetic Susceptibility in a Large Cohort of Multiplex Families J. Clin. Endocrinol. Metab., April 1, 2009; 94(4): 1458 - 1466. [Abstract] [Full Text] [PDF] |
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A. Beeghly-Fadiel, Q. Cai, W. Lu, J. Long, Y.-T. Gao, X.-o. Shu, and W. Zheng No Association between Matrix Metalloproteinase-1 or Matrix Metalloproteinase-3 Polymorphisms and Breast Cancer Susceptibility: A Report from the Shanghai Breast Cancer Study Cancer Epidemiol. Biomarkers Prev., April 1, 2009; 18(4): 1324 - 1327. [Full Text] [PDF] |
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L. M. Morton, M. P. Purdue, T. Zheng, S. S. Wang, B. Armstrong, Y. Zhang, I. Menashe, N. Chatterjee, S. Davis, Q. Lan, et al. Risk of Non-Hodgkin Lymphoma Associated with Germline Variation in Genes that Regulate the Cell Cycle, Apoptosis, and Lymphocyte Development Cancer Epidemiol. Biomarkers Prev., April 1, 2009; 18(4): 1259 - 1270. [Abstract] [Full Text] [PDF] |
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J. P. Breyer, M. E. Sanders, D. C. Airey, Q. Cai, B. L. Yaspan, P. A. Schuyler, Q. Dai, F. Boulos, M. G. Olivares, K. M. Bradley, et al. Heritable Variation of ERBB2 and Breast Cancer Risk Cancer Epidemiol. Biomarkers Prev., April 1, 2009; 18(4): 1252 - 1258. [Abstract] [Full Text] [PDF] |
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Y. Zha, K. H. Leung, K. K. Lo, W. Y. Fung, P. W. Ng, M.-g. Shi, M. K. H. Yap, and S. P. Yip TGFB1 as a Susceptibility Gene for High Myopia: A Replication Study With New Findings Arch Ophthalmol, April 1, 2009; 127(4): 541 - 548. [Abstract] [Full Text] [PDF] |
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S. K. Park, G. Andreotti, L. C. Sakoda, Y.-T. Gao, A. Rashid, J. Chen, B. E. Chen, P. S. Rosenberg, M.-C. Shen, B.-S. Wang, et al. Variants in hormone-related genes and the risk of biliary tract cancers and stones: a population-based study in China Carcinogenesis, April 1, 2009; 30(4): 606 - 614. [Abstract] [Full Text] [PDF] |
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J. S. Danik, G. Pare, D. I. Chasman, R. Y.L. Zee, D. J. Kwiatkowski, A. Parker, J. P. Miletich, and P. M Ridker Novel Loci, Including Those Related to Crohn Disease, Psoriasis, and Inflammation, Identified in a Genome-Wide Association Study of Fibrinogen in 17 686 Women: The Women's Genome Health Study Circ Cardiovasc Genet, April 1, 2009; 2(2): 134 - 141. [Abstract] [Full Text] [PDF] |
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J. G. Smith, O. Melander, H. Lovkvist, B. Hedblad, G. Engstrom, P. Nilsson, J. Carlson, G. Berglund, B. Norrving, and A. Lindgren Common Genetic Variants on Chromosome 9p21 Confers Risk of Ischemic Stroke: A Large-Scale Genetic Association Study Circ Cardiovasc Genet, April 1, 2009; 2(2): 159 - 164. [Abstract] [Full Text] [PDF] |
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W. C. Leung, S. Hessel, C. Meplan, J. Flint, V. Oberhauser, F. Tourniaire, J. E. Hesketh, J. von Lintig, and G. Lietz Two common single nucleotide polymorphisms in the gene encoding {beta}-carotene 15,15'-monoxygenase alter {beta}-carotene metabolism in female volunteers FASEB J, April 1, 2009; 23(4): 1041 - 1053. [Abstract] [Full Text] [PDF] |
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F.-C. Hsu, J. Sun, F. Wiklund, S. D. Isaacs, K. E. Wiley, L. D. Purcell, Z. Gao, P. Stattin, Y. Zhu, S.-T. Kim, et al. A Novel Prostate Cancer Susceptibility Locus at 19q13 Cancer Res., April 1, 2009; 69(7): 2720 - 2723. [Abstract] [Full Text] [PDF] |
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N. D. Shephard, R. Abo, S. H. Rigas, B. Frank, W.-Y. Lin, I. W. Brock, A. Shippen, S. P. Balasubramanian, M. W. R. Reed, C. R. Bartram, et al. A Breast Cancer Risk Haplotype in the Caspase-8 Gene Cancer Res., April 1, 2009; 69(7): 2724 - 2728. [Abstract] [Full Text] [PDF] |
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T. Lencz, R. H. Lipsky, P. DeRosse, K. E. Burdick, J. M. Kane, and A. K. Malhotra Molecular differentiation of schizoaffective disorder from schizophrenia using BDNF haplotypes The British Journal of Psychiatry, April 1, 2009; 194(4): 313 - 318. [Abstract] [Full Text] [PDF] |
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C. Wang, C. Hu, R. Zhang, Y. Bao, X. Ma, J. Lu, W. Qin, X. Shao, J. Lu, J. Xu, et al. Common Variants of Hepatocyte Nuclear Factor 1{beta} Are Associated With Type 2 Diabetes in a Chinese Population Diabetes, April 1, 2009; 58(4): 1023 - 1027. [Abstract] [Full Text] [PDF] |
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M. M. Gray, J. M. Granka, C. D. Bustamante, N. B. Sutter, A. R. Boyko, L. Zhu, E. A. Ostrander, and R. K. Wayne Linkage Disequilibrium and Demographic History of Wild and Domestic Canids Genetics, April 1, 2009; 181(4): 1493 - 1505. [Abstract] [Full Text] [PDF] |
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P. L. De Jager, C. Baecher-Allan, L. M. Maier, A. T. Arthur, L. Ottoboni, L. Barcellos, J. L. McCauley, S. Sawcer, A. Goris, J. Saarela, et al. The role of the CD58 locus in multiple sclerosis PNAS, March 31, 2009; 106(13): 5264 - 5269. [Abstract] [Full Text] [PDF] |
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L. L.E. Koskinen, E. Einarsdottir, E. Dukes, G. A. R. Heap, P. Dubois, I. R. Korponay-Szabo, K. Kaukinen, K. Kurppa, F. Ziberna, S. Vatta, et al. Association study of the IL18RAP locus in three European populations with coeliac disease Hum. Mol. Genet., March 15, 2009; 18(6): 1148 - 1155. [Abstract] [Full Text] [PDF] |
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H.-D. Song, J. Liang, J.-Y. Shi, S.-X. Zhao, Z. Liu, J.-J. Zhao, Y.-D. Peng, G.-Q. Gao, J. Tao, C.-M. Pan, et al. Functional SNPs in the SCGB3A2 promoter are associated with susceptibility to Graves' disease Hum. Mol. Genet., March 15, 2009; 18(6): 1156 - 1170. [Abstract] [Full Text] [PDF] |
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S. Han, X. Kim-Howard, H. Deshmukh, Y. Kamatani, P. Viswanathan, J. M. Guthridge, K. Thomas, K. M. Kaufman, J. Ojwang, A. Rojas-Villarraga, et al. Evaluation of imputation-based association in and around the integrin-{alpha}-M (ITGAM) gene and replication of robust association between a non-synonymous functional variant within ITGAM and systemic lupus erythematosus (SLE) Hum. Mol. Genet., March 15, 2009; 18(6): 1171 - 1180. [Abstract] [Full Text] [PDF] |
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M. H. Sohn, J. H. Lee, K. W. Kim, S. W. Kim, S. H. Lee, K.-E. Kim, K. H. Kim, C. G. Lee, J. A. Elias, and M. G. Lee Genetic Variation in the Promoter Region of Chitinase 3-Like 1 Is Associated with Atopy Am. J. Respir. Crit. Care Med., March 15, 2009; 179(6): 449 - 456. [Abstract] [Full Text] [PDF] |
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W. Liu, J. Sun, G. Li, Y. Zhu, S. Zhang, S.-T. Kim, J. Sun, F. Wiklund, K. Wiley, S. D. Isaacs, et al. Association of a Germ-Line Copy Number Variation at 2p24.3 and Risk for Aggressive Prostate Cancer Cancer Res., March 15, 2009; 69(6): 2176 - 2179. [Abstract] [Full Text] [PDF] |
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M. C. Aldrich, S. Selvin, H. M. Hansen, L. F. Barcellos, M. R. Wrensch, J. D. Sison, K. T. Kelsey, P. A. Buffler, C. P. Quesenberry Jr., M. F. Seldin, et al. CYP1A1/2 Haplotypes and Lung Cancer and Assessment of Confounding by Population Stratification Cancer Res., March 15, 2009; 69(6): 2340 - 2348. [Abstract] [Full Text] [PDF] |
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J. M. Schildkraut, E. L. Goode, M. A. Clyde, E. S. Iversen, P. G. Moorman, A. Berchuck, J. R. Marks, J. Lissowska, L. Brinton, B. Peplonska, et al. Single Nucleotide Polymorphisms in the TP53 Region and Susceptibility to Invasive Epithelial Ovarian Cancer Cancer Res., March 15, 2009; 69(6): 2349 - 2357. [Abstract] [Full Text] [PDF] |
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M. E. Sehl, L. R. Langer, J. C. Papp, L. Kwan, J. L. Seldon, G. Arellano, J. Reiss, E. F. Reed, S. Dandekar, Y. Korin, et al. Associations between Single Nucleotide Polymorphisms in Double-Stranded DNA Repair Pathway Genes and Familial Breast Cancer Clin. Cancer Res., March 15, 2009; 15(6): 2192 - 2203. [Abstract] [Full Text] [PDF] |
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Y. H. Park, S. K. Sohn, J. G. Kim, M.-H. Lee, H. S. Song, M. K. Kim, J. S. Jung, J.-J. Lee, H. J. Kim, and D. H. Kim Interaction between BCL2 and Interleukin-10 Gene Polymorphisms Alter Outcomes of Diffuse Large B-Cell Lymphoma following Rituximab Plus CHOP Chemotherapy Clin. Cancer Res., March 15, 2009; 15(6): 2107 - 2115. [Abstract] [Full Text] [PDF] |
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U. Nowak-Gottl, B. Frohlich, S. Thedieck, A. Huge, and M. Stoll Association of the protein Z ATG haplotype with symptomatic nonvascular stroke or thromboembolism in white children: a family-based cohort study Blood, March 5, 2009; 113(10): 2336 - 2341. [Abstract] [Full Text] [PDF] |
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M. T. Vuong, S. Lundberg, I. Gunnarsson, L. Wramner, M. Seddighzadeh, M. Hahn-Zoric, A. Fernstrom, L. A Hanson, L. T. Do, S. H. Jacobson, et al. Genetic variation in the transforming growth factor-{beta}1 gene is associated with susceptibility to IgA nephropathy Nephrol. Dial. Transplant., March 3, 2009; (2009) gfp079v1. [Abstract] [Full Text] [PDF] |
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E Sanchez, M. Gonzalez-Gay, J. Callejas-Rubio, N Ortego-Centeno, J. Sabio, J Jimenez-Alonso, L Mico, A Suarez, C Gutierrez, E de Ramon, et al. No evidence for genetic association of interferon regulatory factor 3 in systemic lupus erythematosus Lupus, March 1, 2009; 18(3): 230 - 234. [Abstract] [PDF] |
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E. T. Chang, B. M. Birmann, J. L. Kasperzyk, D. V. Conti, P. Kraft, R. F. Ambinder, T. Zheng, and N. E. Mueller Polymorphic Variation in NFKB1 and Other Aspirin-Related Genes and Risk of Hodgkin Lymphoma Cancer Epidemiol. Biomarkers Prev., March 1, 2009; 18(3): 976 - 986. [Abstract] [Full Text] [PDF] |
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