Psychotic DisordersSchizophreniaDelusionsPsychoses, Substance-InducedAffective Disorders, PsychoticHallucinationsBipolar DisorderSchizophrenic PsychologyAntipsychotic AgentsPsychiatric Status Rating ScalesMental DisordersSchizotypal Personality DisorderProdromal SymptomsDiagnostic and Statistical Manual of Mental DisordersShared Paranoid DisorderMood DisordersParanoid DisordersSchizophrenia, ParanoidPsychoses, AlcoholicQatarPsychoanalytic InterpretationCannabisPalauAnxiety DisordersHospitals, PsychiatricInterview, PsychologicalRisperidoneDepressive Disorder, MajorCognition DisordersDiagnosis, Dual (Psychiatry)Commitment of Mentally IllSubstance-Related DisordersMarijuana AbusePsychiatric Department, HospitalNetherlands AntillesComorbidityEarly Medical InterventionEmergency Services, Psychiatric2',3'-Cyclic Nucleotide 3'-PhosphodiesteraseBrief Psychiatric Rating ScaleRisk FactorsDepressive DisorderAge of OnsetInternational Classification of DiseasesSeverity of Illness IndexHaloperidolNeuropsychological TestsClozapineCognitive TherapyHospitalizationBrainLongitudinal StudiesCase-Control StudiesCommunity Mental Health ServicesPsychometricsFollow-Up StudiesMarylandUnited States Agency for Healthcare Research and QualityMental Health ServicesChild of Impaired ParentsSiblingsEarly DiagnosisSocial AdjustmentSex FactorsGenetic Predisposition to DiseaseAffective SymptomsSocial EnvironmentStress Disorders, Post-TraumaticFamilyPrevalenceMagnetic Resonance ImagingCross-Sectional StudiesObsessive-Compulsive DisorderSocial BehaviorAttention Deficit Disorder with HyperactivityAge FactorsDepressionQuestionnairesAnalysis of VarianceTreatment OutcomeDisease ProgressionAutistic DisorderRetrospective StudiesTime FactorsFinlandCohort StudiesPhenotypeNetherlandsSocioeconomic FactorsIncidenceAcute DiseasePhobic DisordersChild Development Disorders, PervasiveSchizophrenia and Disorders with Psychotic FeaturesProspective StudiesCatatoniaSomatoform DisordersDelirium, Dementia, Amnestic, Cognitive DisordersReproducibility of ResultsPatient Compliance