Autore C, Brauneis S, Apponi F, Commisso C, Pinto G, Fedele F
Department of Cardiovascular and Respiratory Sciences and from the Institute of Anesthesiology and Intensive Care, University of Rome La Sapienza, Italy.
Anesthesiology. 1999 Apr;90(4):1205-7. doi: 10.1097/00000542-199904000-00036.