1. Comprehensive Drug Research Center, University of Miami, Miami, Florida, 33136, USA
2. Department of Epidemiology and Public Health, University of Miami School of Medicine, Miami, Florida, 33136, USA
3. Department of Sociology, University of Miami, Miami, Florida, 33124, USA
4. Department of Public Health, Florida International University, Miami, Florida, 33187, USA
5. Special Populations Office, National institute on Drug Abuse, Rockville, Maryland, 20857, USA