1 Division of Gastroenterology and Hepatology, Department of Medicine, The Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.
2 Department of Public Health Sciences, The Pennsylvania State University-College of Medicine, Hershey, Pennsylvania, USA.
3 Liver Center, The Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.
4 Cancer Institute, The Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.
5 Department of Physiology, The Pennsylvania State University-College of Medicine, Hershey, Pennsylvania, USA.
6 Department of Kinesiology, The Pennsylvania State University-College of Medicine, Hershey, Pennsylvania, USA.
7 Department of Physical Medicine & Rehabilitation, The Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.
8 Department of Medicine, The Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA.