The effects of morphine methadone and meperidine on some reflex responses of spinal animals to nociceptive stimulation.
D000818:Animals; D008614:Meperidine; D008691:Methadone; D009020:Morphine; D012018:Reflex
D009020:Morphine; D008614:Meperidine; D008691:Methadone
MEPERIDINE; METHADON; MORPHINE; REFLEX