1. From the Department of Radiology, University of Southern California, USC University Hospital, 1500 San Pablo St, Los Angeles, CA 90033 (F.S., C.H.); Department of Human Anatomy, University of Extremadura, Badajoz, Spain (D.S.Q.); Division of Cardiovascular Medicine, Kobe University, Kobe, Japan (S.M.); Department of Cardiovascular Surgery, University Hospital of Bucharest, Bucharest, Romania (H.M.); Department...