Extradural pethidine.
Nagle
C J
CJ
McQuay
H J
HJ
D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D005260:Female; D006801:Humans; D008614:Meperidine; D011184:Postoperative Period; D011247:Pregnancy
D008614:Meperidine