Fondation Hôpital Saint-Joseph, Universitätsklinikum Hamburg-Eppendorf, Vascular Surgical Research Group, Imperial College, London, UK, Sanger Heart and Vascular Institute, Charlotte, NC, Loyola University Medical Center, Maywood, IL, UAB School of Medicine, Birmingham, AL, Heidelberg University Hospital, Heidelberg, Germany, University Hospital of Freiburg, Freiburg, Germany, Stanford University, Massachusetts General Hospital, Baylor Research Hospital, Dallas, TX, Emory University Hospital, Atlanta, GA, University Hospital of Mainz, Mainz, Germany, Diakonie Hospital Jung-Stilling, Siegen, Germany, Mayo Clinic, Rochester, MN, Sentara Vascular/Eastern Virginia Medical School, Norfolk, VA, Maastricht University Medical Centre, Maastricht, Netherlands, I.R.C.C.S. Policlinico San Donato, San Donato Milanese, Italy, Memorial Care Long Beach Heart & Vascular Institute, Long Beach, CA, and Wolf Eilenberg, Professor Stephan Haulon, Proessor Tilo Kölbel