30
Participants
Start Date
November 30, 2013
Primary Completion Date
June 30, 2014
Study Completion Date
June 30, 2014
The intravenous patient-controlled analgesia
The intravenous injection of morphine using the patient-controlled analgesia machine
The intrathecal morphine injection
A single injection of morphine intrathecally
Seoul National University of Hospital, Seoul
Seoul National University Hospital
OTHER