1. Department of General Surgery, Geisinger Wyoming Valley Medical Center, Wilkes-Barre, PA, USA.
2. Department of Hematology/Oncology, Geisinger Wyoming Valley Medical Center, Wilkes-Barre, PA, USA.
3. Department of Pathology, Geisinger Wyoming Valley Medical Center, Wilkes-Barre, PA, USA.
4. Department of Surgical Oncology, Geisinger Wyoming Valley Medical Center, Wilkes-Barre, PA, USA.