Randomized Controlled Trial
High pressure versus high intensity noninvasive ventilation in stable hypercapnic chronic obstructive pulmonary disease: a randomized crossover trial.
Int J Chron Obstruct Pulmon Dis. 2012 Jan 1;7:811-8.
Randomized Controlled Trial
Nocturnal non-invasive nasal ventilation in stable hypercapnic COPD: a randomised controlled trial.
Thorax. 2009 Jul 1;64(7):561-6.
Randomized Controlled Trial
High-intensity versus low-intensity non-invasive ventilation in patients with stable hypercapnic COPD: a randomised crossover trial.
Thorax. 2010 Apr 1;65(4):303-8.