Comparison of forehead Max-Fast pulse oximetry sensor with finger sensor at high positive end-expiratory pressure in adult patients with acute respiratory distress syndrome. - Hodgson CL; Tuxen DV; Holland AE; Keating JL; Hodgson, C L; Tuxen, D V; Holland, A E; Keating, J L (Anaesthesia & Intensive Care, 2009)