title: C.S.F. beta-endorphin in schizophrenia.
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004723:Endorphins / Q000134:cerebrospinal fluid*; D006801:Humans; D008875:Middle Aged; D012559:Schizophrenia / Q000134:cerebrospinal fluid*
chemical_list: D004723:Endorphins