Studies on the mode of analgesic action of morphine and morphine derivatives.
D000700:Analgesics; D002540:Cerebral Cortex / Q000502:physiology*; D009020:Morphine; D009022:Morphine Derivatives; D013116:Spinal Cord / Q000502:physiology*
D000700:Analgesics; D009022:Morphine Derivatives; D009020:Morphine
ANALGESICS; CEREBRAL CORTEX/physiology; MORPHINE; SPINAL CORD/physiology