1. From the Division of Cardiology, Department of Medicine (L.Y., T.N., C.J., B.Y.), Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine (A.G., C.H., Z.G.) and Department of Paediatrics (G.R.G.), University of Minnesota Medical School, Minneapolis; Department of Biomedical Engineering, University of Alabama at Birmingham (L.G., J.Z.); and Department of Infectious Disease, Renmin Hospital (J.Y.) and Department of Microbiology, School of Basic Medical Science (J.Y., J...