RT Journal Article SR Electronic T1 Noninvasive Positive-Pressure Ventilation in Patients With Chronic Obstructive Pulmonary Disease Exacerbation: Not Too Late But Not Too Soon? JF Respiratory Care FD American Association for Respiratory Care SP 596 OP 597 VO 50 IS 5 A1 Antoine Cuvelier A1 Jean-François Muir YR 2005 UL http://rc.rcjournal.com/content/50/5/596.abstract AB