Gerbershagen Mark Ulrich, Wappler Frank, Fiege Marko, Weihorn Ralf, Kolodzie Kerstin, Schulte Esch Jochen
Department of Anesthesiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
Anesthesiology. 2004 Dec;101(6):1475-7. doi: 10.1097/00000542-200412000-00033.