Matrix Institute, Woodland Hills, California, United States
New York University, New York, New York, United States
UCLA Integrated Substance Abuse Program, Los Angeles, California, United States
Johns Hopkins Bayview, Baltimore, Maryland, United States
University of Texas Health Science Center, San Antonio, Texas, United States
Johns Hopkins Medical Institute, Baltimore, Maryland, United States
National Institute on Drug Abuse, Baltimore, Maryland, United States
Beth Israel Medical Center, New York, New York, United States
RTI International Field Site, Durham, North Carolina, United States
Connecticut Mental Health Center, New Haven, Connecticut, United States
Medical University of South Carolina, Charleston, South Carolina, United States
Rhode Island Hospital HIV Clinic, Providence, Rhode Island, United States
Stanley Street Treatment and Resources, Inc., Fall River, Massachusetts, United States
Greater New Bedford Community Center, New Bedford, Massachusetts, United States