title: Endogenous opioid peptides and the control of pain.
mesh_terms: D000698:Analgesia; D000818:Animals; D002415:Cats; D002490:Central Nervous System / Q000502:physiology; D004723:Endorphins / Q000494:pharmacology / Q000502:physiology* / Q000627:therapeutic use; D006801:Humans; D009270:Naloxone / Q000494:pharmacology; D009271:Naltrexone / Q000494:pharmacology; D010146:Pain / Q000188:drug therapy / Q000503:physiopathology; D013116:Spinal Cord / Q000187:drug effects; D013373:Substance P / Q000494:pharmacology; D013552:Swine
chemical_list: D004723:Endorphins; D013373:Substance P; D009270:Naloxone; D009271:Naltrexone