Affiliation: | 1. Molecular Biology of Selenium Section, Mouse Cancer Genetics Program, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA;2. Department of Biological Sciences, Towson University, Towson, MD 21252, USA;3. Division of Genetics, Department of Medicine, Brigham and Women''s Hospital, Harvard Medical School, Boston, MA 02115, USA |