Breivik, Harald*; Stubhaug, Audun
University of Oslo, Division of Anesthesiology and Intenswive Care Medicine, Rikshospitalet, 0027 Oslo, Norway
*Corresponding author: Tel.: +47 23073691; fax: +47 23073690.
E-mail: [email protected]
E-mail: [email protected]
Submitted and accepted April 17, 2008.