Epidural buprenorphine for pain relief after major abdominal surgery - CAHILL, J.; MURPHY, D.; O'BRIEN, D.; MULHALL, J.; FITZPATRICK, G. (Blackwell Publishing Ltd, 1983)
http://dx.doi.org/10.1111/j.1365-2044.1983.tb12199.x
Keywords: WW-YZ