Velez Maria I, Nambiar Anoop M
Division of Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA; Audie L. Murphy VA Hospital, South Texas Veterans Health Care System, San Antonio, Texas, USA.
Respirology. 2015 Apr;20(3):359-60. doi: 10.1111/resp.12487. Epub 2015 Feb 11.