Affiliation: | a Division of Cardiothoracic and Vascular Surgery, Creighton University Medical Center, Omaha, Neb b Division of Vascular and Endovascular Surgery, Harbor-UCLA Medical Center, Torrance, Calif c Division of Cardiothoracic Surgery, Harbor-UCLA Medical Center, Torrance, Calif d Division of Interventional Radiology, Harbor-UCLA Medical Center, Torrance, Calif |