1. Department of Physical Medicine and Rehabilitation, The Perelman School of Medicine The University of Pennsylvania Philadelphia Pennsylvania USA
2. Electrodiagnostic and Spine Sections, VA North Texas Health Care System, Dallas VA Medical Center, Department of Physical Medicine & Rehabilitation University of Texas Southwestern Medical Center Dallas Texas USA
3. Musculoskeletal Spine & Sports Rehabilitation Medicine, MossRehab Einstein Spine Institute, Co‐Chair, Albert Einstein Healthcare Network, Rehabilitation Medicine, Thomas Jefferson University Philadelphia Pennsylvania USA