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HIV treatment optimism and crystal methamphetamine use and initiation among HIV-negative men who have sex with men in Vancouver, Canada: A longitudinal analysis

Substance UseMental HealthSocial SciencesPsychologyAddiction MedicineSexual AddictionPsychoactive Substance UsePublic HealthCrystal Methamphetamine UsePsychiatryHiv Treatment OptimismAddiction TreatmentHiv-negative MenHivSexual BehaviorSexual HealthSubstance AbuseTreatment And PreventionAddictionSubstance AddictionMedicine