title: Tryptophan concentration in the cerebrospinal fluid of depressive patients.
mesh_terms: D000328:Adult; D000368:Aged; D001692:Biological Transport; D001714:Bipolar Disorder / Q000134:cerebrospinal fluid; D002986:Clinical Trials as Topic; D003863:Depression / Q000134:cerebrospinal fluid*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014364:Tryptophan / Q000134:cerebrospinal fluid*
chemical_list: D014364:Tryptophan