Pain. The last piece in the puzzle.
D015670:Acupuncture Therapy; D004745:Enkephalins / Q000502:physiology; D006801:Humans; D009020:Morphine / Q000627:therapeutic use; D009431:Neural Conduction; D010146:Pain / Q000503:physiopathology*; D059408:Pain Management
D004745:Enkephalins; D009020:Morphine