1. Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio
2. Department of Pulmonary and Critical Care Medicine, Cleveland Clinic, Cleveland, Ohio
3. Department of Internal Medicine, Cleveland Clinic–Fairview Hospital, Cleveland, Ohio
4. Department of Internal Medicine, John H. Stroger Jr Hospital of Cook County, Chicago, Illinois
5. Dow Medical College, Karachi, Pakistan
6. Floyd D. Loop Alumni Library, Cleveland Clinic, Cleveland, Ohio
7. Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio
8. AdvantageCare Physicians, Brooklyn, New York