Scaffa Raffaele, Spaziani Cristina, Leporace Mario, Leonetti Stefania, Di Roma Mauro, Gaspardone Achille, De Paulis Ruggero
Department of Cardiovascular Sciences, European Hospital, Rome, Italy.
Ann Thorac Surg. 2012 Feb;93(2):e41. doi: 10.1016/j.athoracsur.2011.10.029.