Affiliation: | *Herz und Gefaessklinik, Department of Cardiac Surgery, Bad Neustadt, Germany; ?Hospital, Department of Cardiovascular Surgery, Ceske Budejovice, Czech Republic; ?Department of Cardiac Surgery, University of Milan, Centro Cardiologico Milan, Italy; §Clinic for Cardiovascular Surgery, University Hospital, Bern, Switzerland; ‖Perfuse Core Laboratories and Data Coordinating Center, Boston, MA; ?Division of Cardio-Thoracic Surgery, Mayo Clinic, Rochester, MN. |