[1
]
Department of Cardiac Surgery, Leipzig Heart Center, University of Leipzig, Leipzig,
Germany sergey.leontyev@medizin.uni-leipzig.de.
[2
]
Department of Thoracic and Cardiovascular Surgery, West German Heart Centre Essen,
University Hospital Essen, Essen, Germany.
[3
]
Department of Cardiac Surgery, Sant'Orsola-Malpighi Hospital, Bologna, Italy.
[4
]
Department of Cardiac Surgery, Leipzig Heart Center, University of Leipzig, Leipzig,
Germany.
[5
]
Department of Cardiovascular Surgery, Hospital Hietzing, Vienna, Austria.
[6
]
Queen Elizabeth Hospital Birmingham, Birmingham, UK.
[7
]
Department of Cardiac and Vascular Surgery, Robert Bosch Hospital, Stuttgart, Germany.
[8
]
Tampere University Hospital Heart Center, Tampere, Finland.
[9
]
Szpital Wojewódzki N2, Oddział Kardiochirurgii, Rzeszów, Poland.
[10
]
Department of Cardio Vascular Surgery, Hospital Clinico, University of Barcelona,
Barcelona, Spain.