title: Biological factors in prepubertal major depression.
mesh_terms: D002648:Child; D003866:Depressive Disorder / Q000209:etiology* / Q000235:genetics; D013006:Growth Hormone / Q000378:metabolism; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000502:physiology; D012893:Sleep Wake Disorders / Q000150:complications; D012895:Sleep, REM
chemical_list: D018377:Neurotransmitter Agents; D013006:Growth Hormone; D006854:Hydrocortisone