1. Department of Cardiothoracic Surgery, Golden Jubilee National Hospital, Clydebank, Dunbartonshire, UK.
2. Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France.
3. Laboratory of Virology, The Regina Elena National Cancer Institute, Rome, Italy.
4. Unit of Imaging and Diagnostics, Università Campus Bio-Medico di Roma, Rome, Italy.
5. Unit of Cardiac Surgery, Università Campus Bio-Medico di Roma, Rome, Italy.
6. Tissue Engineering Laboratory, Università Campus Bio-Medico di Roma, Rome, Italy.