1. Department of Family Medicine and Public Health, La Jolla, CA
2. Moores UC San Diego Cancer Center, La Jolla, CA
3. Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA
4. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
5. Department of Medicine, La Jolla, CA
6. Department of Kinesiology, University of Wisconsin, Madison, WI
7. UC San Diego, La Jolla, CA