1. St Vincent Healthcare, Sisters of Charity of Leavenworth Health System, Billings, MT, USA
2. Department of Biological and Physical Sciences, Montana State University-Billings, Billings, MT, USA
3. Molecular Research (Mr. DNA), Shallowater, TX, USA
4. Hiram C. Polk, Jr. MD, Department of Surgery, University of Louisville, Louisville, KY, USA
5. Department of Surgery, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX, USA