1. Avera McKennan Hospital & University Health Center : Avera Medical Group Transplant & Liver Surgery . Sioux Falls , South Dakota, USA
2. Department of Surgery , University of South Dakota . Sioux Falls , South Dakota, USA
3. Department of Internal Medicine , University of South Dakota . Sioux Falls , South Dakota, USA
4. Division of Acute Care, Trauma, Surgical Critical Care. Department of Surgery . Duke University . Durham , North Carolina, USA