1 Department of Physical Medicine and Rehabilitation, Rutgers University - New Jersey Medical School, Center for Ventilator Management Alternatives and Pulmonary Rehabilitation of the University Hospital of Newark , Newark, NJ, USA.
2 Department of Physical Medicine and Rehabilitation, Rutgers University - New Jersey Medical School , Newark, NJ, USA.
3 Pulmonary Division, Department of Medicine, Conamaugh Memorial Medical Center , Johnstown, PA, USA.
4 Department of Neurology, Rutgers University - New Jersey Medical School , Newark, NJ, USA.