Hofer Christoph K, Mizuguchi Annette Kaoru, Popescu Wanda M
Institute of Anesthesiology and Intensive Care Medicine, Triemli City Hospital, Birmensdorferstrasse 497, Zurich, Switzerland.
Int Anesthesiol Clin. 2012 Spring;50(2):141-72. doi: 10.1097/AIA.0b013e318250ebb1.