Patient-controlled epidural analgesia for labor.
Smiley
Richard M
RM
Columbia University Medical Center, Department of Anesthesiology, New York, New York 10032, USA. rms7@columbia.edu
Stephenson
Leroi
L
D015360:Analgesia, Epidural; D016362:Analgesia, Obstetrical; D016058:Analgesia, Patient-Controlled; D005260:Female; D006801:Humans; D011247:Pregnancy