1. Department of Physical Therapy and Rehabilitation Science, University of Maryland School of Medicine, Baltimore, MD, USA
2. Division of Thoracic Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
3. University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD, USA
4. Division of Biostatistics and Bioinformation, University of Maryland School of Medicine, Baltimore, MD, USA