Affiliation: | (1) Department of Internal Medicine, Division of Pulmonary and Critical Care, Temple University School of Medicine, Philadelphia, PA 19140, USA;(2) Department of Neurology/Internal Medicine, St. Mary’s Medical Center, Langhorne, PA 19047, USA;(3) Pulmonary and Critical Care Medicine and Temple Lung Center, Temple University School of Medicine, Philadelphia, PA 19140, USA; |