Lessons learned with extended-release epidural morphine after total hip arthroplasty.
Kahl L, Parvizi J, Viscusi ER, Hozack WJ, Sharkey PF, Rothman RH. Lessons learned with extended-release epidural morphine after total hip arthroplasty. Clin Orthop Relat Res. 2010 Apr; 468(4):1082-7.