Anthony Kicic, Teal S. Hallstrand, Erika N. Sutanto, Paul T. Stevens, Michael S. Kobor, Christopher Taplin, Peter D. Paré, Richard P. Beyer, Stephen M. Stick, Darryl A. Knight
Am J Respir Crit Care Med. 2010 May 1; 181(9): 889–898. Published online 2010 Jan 28. doi: 10.1164/rccm.200907-1071OC