No Association between toenail selenium levels and bladder cancer risk.
Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics [D. S. M., D. A.] and Center for Cancer Research [T. J. H., P. R. T.], National Cancer Institute, Rockville, Maryland 20852; Pennsylvania State University, University Park, Pennsylvania 16802 [T. J. H.]; and Department of Epidemiology and Health Promotion, National Public Health Issue, Helsinki, Finland [P. P., G. A., J. V.]