OntarioCanadaSevere Acute Respiratory SyndromeAffective SymptomsQuarantineRetrospective StudiesCommunicable Diseases, EmergingQuestionnairesTorticollisHomeless PersonsContractsPain ClinicsDisease OutbreaksUrban PopulationPoliomyelitis, BulbarTracheitisPhysician's Practice PatternsRisk FactorsPleurodynia, EpidemicFamily PracticeEmigrants and ImmigrantsMeningitis, ViralWaiting ListsGeneral SurgeryLaryngitisHealth Services AccessibilityEmigration and ImmigrationCapitalismMultiple Chemical SensitivityMoral DevelopmentCensusesTime FactorsProfessional MisconductHospitals, CommunityCohort StudiesDental FacilitiesPathology, OralPrevalenceEpidemiologySeverity of Illness IndexAnimals, ZooCross-Sectional StudiesForeign Medical GraduatesTreatment OutcomeAttitude of Health PersonnelPhysicians, FamilyUrban HealthSocial MarginalizationHospitals, PediatricPersonnel, HospitalData CollectionPain MeasurementInfant, NewbornParanoid Personality DisorderInfectious Disease Transmission, Patient-to-Professional