[1] New York University School of Global Public Health,Department of Epidemiology
[2] Kerman University of Medical Sciences,HIV/STI Surveillance Research Center, and WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health
[3] Center for Drug Use and HIV/HCV Research,Centre on Drug Policy Evaluation, MAP Centre for Urban Health Solutions
[4] St. Michael’s Hospital,Dalla Lana School of Public Health
[5] University of Toronto,Department of Health Sciences, Faculty of Applied Health Sciences
[6] Brock University,Department of Epidemiology and Biostatistics
[7] University of California,undefined