Depressive Disorder, Treatment-ResistantDepressive Disorder, MajorAntidepressive AgentsElectroconvulsive TherapyDrug ResistanceDepressionCyclohexanolsDepressive DisorderCognitive TherapySerotonin Uptake InhibitorsSubstance-Related DisordersSubstance Abuse Treatment CentersAntipsychotic AgentsResidential TreatmentTreatment OutcomeEating DisordersPsychiatric Status Rating ScalesPsychotherapyDysthymic DisorderDepression, PostpartumAntidepressive Agents, Second-GenerationAnxiety DisordersCitalopramDiagnostic and Statistical Manual of Mental DisordersBipolar DisorderPrimary Health CareComorbidityPersonality Inventory