1. Biostatistics and Epidemiology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WV, USA
2. Veterans Affairs Pacific Islands Health Care System, Honolulu, Hawaii, USA
3. The Pacific Health Research Institute, Honolulu, HI, USA
4. Departments of Geriatric Medicine and Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
5. Kuakini Medical Center and the Honolulu-Asia Aging Study, Honolulu, HI, USA
6. Department of Occupational and Environmental Health, the University of Iowa College of Public Health, Iowa City, IA, USA