Correction: vitamin d metabolic pathway genes and pancreatic cancer risk.

Three authors are not included in the author byline. Laufey T. Amundadottir should be listed as the 8th author and affiliated with the Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. The contributions of this author are as follows: Performed the experiments, contributed reagents/materials/analysis/tools. Stephen J Chanock should be listed as the 15th author and affiliated with the National Cancer Institute, Division of Cancer Epidemiology & Genetics, Rockville. MD. The contributions of this author are as follows: performed the experiments, funded GWAS. Stephen Van Den Eeden should be listed as the 44th author and affiliated with the Kaiser Permanente Division of Research. 2000 Broadway, Oakland, CA 94612. The contributions of this author are as follows: conceived and designed the experiments, wrote the manuscript.