Homeless PersonsLos AngelesWomenWomen's HealthHomeless YouthSubstance-Related DisordersHousingLogistic ModelsSexual BehaviorSocioeconomic FactorsRisk FactorsPregnant WomenBattered WomenPublic HousingWomen's Health ServicesPregnancyWomen's RightsTrench FeverSex FactorsCross-Sectional StudiesQuestionnairesPostmenopauseBartonella quintanaWomen, WorkingCohort StudiesUnited StatesAge FactorsPhysicians, WomenRunaway BehaviorPregnancy Complications, InfectiousHIV InfectionsMenopauseInterviews as TopicBody Mass IndexPregnancy OutcomeCase-Control StudiesMass ScreeningFollow-Up StudiesPediculusParityUrban PopulationIncidencePremenopausePrenatal CareSan FranciscoPatient Acceptance of Health CareHealth Knowledge, Attitudes, PracticePovertyVaginal SmearsUterine Cervical NeoplasmsPostpartum PeriodTime FactorsNew York CityHealth Services AccessibilityVulnerable PopulationsOdds RatioRetrospective StudiesMental Disorders