Affiliation: | a Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA b Department of Epidemiology, School of Public Health and Community Medicine, University of Washington, Seattle, WA c Department of Otolaryngology-Head and Neck Surgery, School of Medicine, University of Washington, Seattle, WA d Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM. |