title: Re: "High rates of HIV infection among injection drug users participating in needle exchange programs in Montreal: results of a cohort study".
authors.forename: R S
authors.initials: RS
authors.lastname: Garfein
authors.forename: R
authors.initials: R
authors.lastname: Lyerla
authors.forename: T S
authors.initials: TS
authors.lastname: Jones
authors.forename: A K
authors.initials: AK
authors.lastname: Nakashima
authors.forename: E R
authors.initials: ER
authors.lastname: Monterroso
authors.forename: D
authors.initials: D
authors.lastname: Vlahov
mesh_terms: D015984:Causality; D015331:Cohort Studies; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control; D006801:Humans; D018671:Needle-Exchange Programs / Q000145:classification; D011792:Quebec; D012307:Risk Factors; D015983:Selection Bias; D015819:Substance Abuse, Intravenous