1. Department of Social and Behavioral Sciences, School of Nursing, University of California, San Francisco, United States
2. Clinical Research Trials Office, University of Minnesota, Minneapolis, MN, United States
3. Communicable Disease Control and Prevention Division, County of Humboldt, Eureka, CA, United States
4. Department of Social and Behavioral Sciences, School of Nursing, Philip R. Lee Institute for Health Policy Studies, and Healthforce Center, University of California, University of California, San Francisco, United States