title: The nature of dysthymia.
authors.forename: S
authors.initials: S
authors.lastname: Lee
mesh_terms: D000929:Antidepressive Agents, Tricyclic / Q000627:therapeutic use; D002908:Chronic Disease; D003866:Depressive Disorder / Q000145:classification / Q000175:diagnosis* / Q000523:psychology; D003937:Diagnosis, Differential; D006801:Humans; D012924:Social Conditions; D012931:Social Environment
chemical_list: D000929:Antidepressive Agents, Tricyclic