RT Journal Article SR Electronic T1 Noninvasive Positive-Pressure Ventilation: A Silver Bullet for Extubation Failure? JF Respiratory Care FD American Association for Respiratory Care SP 1454 OP 1456 VO 52 IS 11 A1 Dean R Hess A1 H Thomas Stelfox A1 Ulrich Schmidt YR 2007 UL http://rc.rcjournal.com/content/52/11/1454.abstract AB