1. Bronchoscopy via Continuous Positive Airway Pressure for Patients With Respiratory Failure 
Mc Grath Gregory , MD, Das-Gupta Mike , MD, Clarke Geoffrey , MD 
CHEST 
Volume 119, Issue 2, Pages (February 2001)
DOI: /chest a
Copyright © 2001 The American College of Chest Physicians Terms and Conditions

2. Figure 1 Face mask with CPAP valve applied at themask.
CHEST  , DOI: ( /chest a)
Copyright © 2001 The American College of Chest Physicians Terms and Conditions