1 Telehealth Cardiopulmonary Rehabilitation Program, Medical Care Line, Michael E DeBakey Veterans Affairs Medical Center, 2002 Holcombe Blvd (Mail code 153), Houston, TX, 77030, USA. msbryant@bcm.edu.
2 Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX, USA. msbryant@bcm.edu.
3 Telehealth Cardiopulmonary Rehabilitation Program, Medical Care Line, Michael E DeBakey Veterans Affairs Medical Center, 2002 Holcombe Blvd (Mail code 153), Houston, TX, 77030, USA.
4 Department of Medicine, Cardiology Section, Baylor College of Medicine, Houston, TX, USA.
5 Department of Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Baylor College of Medicine, Houston, TX, USA.