Affiliation: | 1.School of Nursing, University of Pittsburgh, 3500 Victoria Street, Victoria Building 415, Pittsburgh, PA, 15261, USA ;2.Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA ;3.VA Pittsburgh Healthcare System, Pittsburgh, PA, USA ;4.Department of Molecular and Clinical Medicine/Cardiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden ;5.Department of Cardiology, Sahlgrenska University Hospital/Ostra, Gothenburg, Sweden ;6.Department of Pulmonary Medicine, School of Medicine, Koc University, Istanbul, Turkey ;7.Department of Clinical Sciences, Respiratory Medicine and Allergology, Faculty of Medicine, Lund University, Lund, Sweden ; |