Endogenous opioid system in catatonia.
D000328:Adult; D004723:Endorphins / Q000502:physiology*; D005260:Female; D006801:Humans; D009270:Naloxone / Q000627:therapeutic use*; D012560:Schizophrenia, Catatonic / Q000188:drug therapy*
D004723:Endorphins; D009270:Naloxone