Continuous epidural analgesia via implanted morphine reservoir.
D000767:Anesthesia, Epidural / Q000295:instrumentation*; D002404:Catheterization / Q000295:instrumentation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage* / Q000627:therapeutic use; D010148:Intractable Pain / Q000188:drug therapy*
D009020:Morphine