A prospective randomized trial comparing epidural morphine through intraoperatively placed epidural catheter and intravenous morphine in major lumbar spinal surgery.
Prasartritha
Thavat
T
Center of Excellence in Orthopedics, Lerdsin General Hospital, Bangkok, Thailand. prasartritha@hotmail.com
Kunakornsawat
Sombat
S
Tungsiripat
Rachata
R
Jampa
Jaruat
J
Throngnumchai
Roongnapa
R