1. Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Irving Medical Center, New York, New York;
2. Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy;
3. Healthcare Professions Department, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico, Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy;
4. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York;
5. Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, La Jolla, California;
6. Veterans Affairs Normative Aging Study, Veterans Affairs Boston Healthcare System, Boston, Massachusetts;
7. Department of Medicine, Boston University School of Medicine, Boston, Massachusetts;
8. Department of Pediatrics, University of Rochester Medical Center, Rochester, New York; and
9. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts