Commentary on Betts et al. (2016): Polysubstance use and opioid substitution therapy among people who inject drugs.
Department of Pediatrics, Eastern Virginia Medical School, Norfolk, VA, USA. harrelpt@evms.edu.|Department of Psychiatry and Behavioral Sciences, Eastern Virginia Medical School, Norfolk, VA, USA. harrelpt@evms.edu.
Paul T
PT
Harrell
Department of Pediatrics, Eastern Virginia Medical School, Norfolk, VA, USA.
Hongyun
H
Fu
D006801:Humans; D058850:Opiate Substitution Treatment; D012309:Risk-Taking; D015819:Substance Abuse, Intravenous
Causal inference; Respondent Driven Sampling (RDS); clinical trials; heroin; opioid substitution therapy; people who inject drugs (PWID); polysubstance use; prescription drug abuse; propensity score matching