title: Trial of 'Piracetam' in chronic schizophrenia.
mesh_terms: D002908:Chronic Disease; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D006801:Humans; D010889:Piracetam / Q000627:therapeutic use*; D011760:Pyrrolidinones / Q000627:therapeutic use*; D012559:Schizophrenia / Q000188:drug therapy*
chemical_list: D011760:Pyrrolidinones; D010889:Piracetam