1. Division of Pulmonary, Allergy, Critical Care and Sleep Medicine (F.P.R., M.I.), University of Arizona, Tuscon.
2. Division of Pulmonary, Critical Care and Sleep Medicine, University of Oklahoma Health Sciences Center, Oklahoma City (R.J.B.).
3. Division of Cardiovascular Medicine, The Ohio State University, Columbus (R.R.V.).
4. Department of Cardiovascular Medicine (D.H.K., M.M.P., W.H.W.T.), Cleveland Clinic, Cleveland, OH.
5. Divison of Cardiology (T.A., S.K.), University of Arizona, Tuscon.
6. Department of Medicine (A.K., J.G.N.G.), University of Arizona, Tuscon.
7. Department of Cardiovascular and Respiratory Science, Sapienza University of Rome, Italy (R.B.).
8. Department of Quantitative Health Sciences (A.B.L., G.J.B.), Cleveland Clinic, Cleveland, OH.
9. Department of Pathophysiology, Free University of Brussels, Belgium (R.N.).
10. Lerner Research Institute (S.C.E.), Cleveland Clinic, Cleveland, OH.
11. Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN (R.P.F.).
12. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, MD (P.M.H.).
13. Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN (A.R.H.).
14. Division of Pulmonary, Critical Care, and Sleep Medicine, Tufts Medical Center, Boston, MA (N.S.H.).
15. Division of Cardiology, Perkin Heart Failure Center, Weill Cornell Medicine, New York, NY (E.M.H.).
16. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (J.A.L.).
17. Department of Pediatrics and Medicine, Columbia University, Vegelos College of Physicians and Surgeons, New York, NY (E.B.R.).
18. Department of Cardiovascular and Metabolic Sciences (J.D.W.), Cleveland Clinic, Cleveland, OH.