1. Department of Surgery, Division of Vascular Surgery, University of Arizona Medical Center, Tucson, AZ, USA
2. Vascular and Endovascular Surgery Staff, Pima Heart Physicians, Tucson, AZ, USA
3. Department of Vascular and Endovascular Surgery at Stony Brook, Stony Brook University hospital, Long Island, NY, USA
4. Saguaro Surgical, Tucson, AZ, USA