90
Participants
Start Date
July 31, 2014
Primary Completion Date
September 30, 2014
Study Completion Date
September 30, 2014
Ramosetron
Ramosetron was given iv.
Naloxone
Naloxone added to PCA was given iv.
saline
Saline was given iv.
Morphine
Morphine in the PCA was given iv.
Kyungpook National University Hospital
OTHER