Nasal pressure support ventilation plus oxygen compared with oxygen therapy alone in hypercapnic COPD.
Am J Respir Crit Care Med. 1995 Aug;152(2):538-44. doi: 10.1164/ajrccm.152.2.7633704.
Am J Respir Crit Care Med. 1995.
PMID: 7633704
Clinical Trial.