Spronk Peter E, Steenbergen Hans, ten Kleij Marianne, Rommes Johannes H
Department of Intensive Care Medicine, Gelre Hospitals, Apeldoorn, and Academic Medical Center, Amsterdam, the Netherlands.
J Crit Care. 2006 Sep;21(3):291-2; author reply 290-1. doi: 10.1016/j.jcrc.2006.02.002.