1 Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio; Menzies Research Institute Tasmania, Hobart, Australia.
2 Heart and Vascular Institute, Cleveland Clinic, Cleveland, Ohio.
3 Wyle Science, Technology, and Engineering, Cardiovascular Laboratory at the National Aeronautics and Space Administration Johnson Space Center, Houston, Texas.
4 University of Texas Medical School, Houston, Texas.
5 The Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas and the University of Texas Southwestern Medical Center, Dallas, Texas.
6 Bluhm Cardiovascular Institute, Northwestern University, Chicago, Illinois.