1 Department of Rehabilitation Medicine, Weill Cornell Medicine, New York Presbyterian Hospital, 525 East 68th Street, Baker Pavilion, F-1602, New York, NY 10065, USA. Electronic address: qsi9001@med.cornell.edu.
2 Department of Rehabilitation and Regenerative Medicine, Columbia University Vagelos College of Physicians and Surgeons, 180 Ft. Washington Avenue, Harkness Pavilion Room 1-165, New York, NY 10032, USA. Electronic address: js1165@cumc.columbia.edu.