1. Division of Health Promotion Sciences, University of Arizona, Tucson, Arizona
2. Department of Nutritional Sciences, University of Arizona, Tucson, Arizona
3. Division of Epidemiology &Biostatistics and Arizona Cancer Center, University of Arizona, Tucson, Arizona
4. Centers for Disease Control and Prevention, Division of Nutrition and Physical Activity, Atlanta, Georgia
5. Centers for Disease Control and Prevention, Behavioral Surveillance Branch, Division of Adult Community Health,Atlanta, Georgia
6. Roswell Park Cancer Institute, Cancer Prevention and Population Sciences, Buffalo, New York