1. The University of Arizona College of Public Health; 1295 N. Martin Ave. Tucson AZ 85724 USA
2. Kaiser Permanente Northwest; 3800 N. Interstate Ave. Portland OR 97227 USA
3. Kaiser Permanente Northern California; 2000 Broadway Oakland CA 94612 USA
4. City of Hope Medical Center/Beckman Research Institute; 1500 East Duarte Road Duarte CA 91010 USA
5. Southern Arizona Veterans Affairs Health Care System; 3601 S. 6th Ave. Tucson AZ 85723 USA
6. The University of Arizona College of Medicine; 1501 N. Campbell Ave. Tucson AZ 85724 USA