title: The significance of biological factors in the diagnosis of depressions: I. Biochemical variables.
mesh_terms: D001921:Brain / Q000378:metabolism; D003866:Depressive Disorder / Q000175:diagnosis* / Q000378:metabolism; D006801:Humans; D018377:Neurotransmitter Agents / Q000378:metabolism*; D011379:Prognosis
chemical_list: D018377:Neurotransmitter Agents