[1] Irccs Azienda Osped Univ Bologna, Bologna, Italy
[2] Univ Hosp Pisa, Thorac Surg, Pisa, Italy
[3] Univ Hosp Parma, Parma, Italy
[4] Univ Insubria, Varese, Italy
[5] Sacred Heart Univ, Policlin Gemelli, Thorac Surg, Rome, Italy
[6] Clin Univ Navarra, Madrid, Spain
[7] Univ Hosp Turin, Turin, Italy
[8] Cantonal Hosp Lucerne, Luzern, Switzerland
[9] Irccs Sacro Cuore Don Calabria Hosp, Negrar Di Valpolicella, Italy
[10] Irccs Arcispedale Santa Maria Reggio Emilia, Reggio Emilia, Italy
[11] Fdn Policlin Univ A Gemelli Irccs, Rome, Italy
[12] Univ Hosp Pisa, Pisa, Italy