title: Depression in children - Part I.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003863:Depression / Q000175:diagnosis / Q000209:etiology / Q000523:psychology; D006801:Humans; D007223:Infant; D001523:Mental Disorders / Q000523:psychology