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British ColumbiaSymbolismUrban PopulationSubstance Abuse, IntravenousPeriprosthetic FracturesCanadaCryptococcusCryptococcosisHomeless YouthNorthwestern United StatesFemoral FracturesNeedle-Exchange ProgramsSocial MarginalizationNeedle SharingExhibits as TopicHomosexualityArcanobacteriumStreet DrugsHerbicide ResistanceDrug UsersInternational System of UnitsPoliceThoracic DiseasesDrug OverdoseDihydrostreptomycin SulfateHarm ReductionCrack CocaineRisk-TakingAuthorshipHip ProsthesisDisease OutbreaksIndians, North AmericanProstitutionArthroplasty, Replacement, HipSubstance-Related DisordersHIV InfectionsMetabolismAcquired Immunodeficiency SyndromeProspective StudiesLogistic ModelsQuestionnairesFracture Fixation, InternalUrban HealthRisk FactorsSexual BehaviorCohort StudiesResidence CharacteristicsHomosexuality, MaleReoperationRetrospective StudiesConfidence Intervals