1. AMC Cancer Research Center, Denver, Colorado
2. Partners for Health Systems, Inc., Denver, Colorado
3. Arizona Cancer Center, Phoenix, Arizona
4. Arizona Health Science Center, University of Arizona, Tucson
5. Arizona Prevention Center, Nutrition Sciences, University of Arizona, Tucson
6. Kaiser Permanente Center for Health Research, Portland, Oregon
7. University of Arizona, Tucson
8. Sociology Department, University of Arizona, Tucson