Division of Cancer Epidemiology and Genetics
National Cancer Institute, National Institutes of Health, DHHS, Bethesda, MD (JCG, MS, HAK, NW); Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY (PEC); Regional Laboratory, Kaiser Permanente Northern California, Berkeley, CA (BF, NEP, TL); Information Management Services Inc., Calverton, MD (LCC); Division of Gynecologic Oncology, Kaiser Permanente Medical Care Program, Oakland, CA (WKK).