title: Pyroluria: a poor marker in chronic schizophrenia.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011758:Pyrroles / Q000652:urine*; D012559:Schizophrenia / Q000652:urine*; D026681:Vitamin B 6 Deficiency / Q000175:diagnosis; D015032:Zinc / Q000172:deficiency
chemical_list: D011758:Pyrroles; D015032:Zinc