Debabrata Bandyopadhyay1, Tanmay S Panchabhai2, Atul C Mehta3. 1. 1 Thoracic Medicine, Geisinger Medical Center, Danville, Pennsylvania. 2. 2 Norton Thoracic Institute, St. Joseph's Hospital Medical Center, Phoenix, Arizona; and. 3. 3 Department of Pulmonary Medicine, Respiratory Institute, Cleveland Clinic Foundation, Cleveland, Ohio.