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