1 Center for Health Disparities Research, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson.
2 Quantitative Methods Editor, JAMA Dermatology.
3 Center for Health Outcomes and PharmacoEconomic Research, R. Ken Coit College of Pharmacy, Department of Pharmacy Practice and Science, University of Arizona, Tucson.
4 Department of Family and Community Medicine, College of Medicine-Tucson, University of Arizona, Tucson.