Enrico Ammirati1,2,3,4,5, Fabrizio Oliva1,2,3,4,5, Oriana Belli1,2,3,4,5, Edgardo Bonacina1,2,3,4,5, Patrizia Pedrotti1,2,3,4,5, Fabio Maria Turazza1,2,3,4,5, Alberto Roghi1,2,3,4,5, Roberto Paino1,2,3,4,5, Luigi Martinelli1,2,3,4,5, Maria Frigerio1,2,3,4,5
1Accepted 9 November, 2014
2Received 15 August, 2014
3Revised 4 November, 2014
4e-mail: [email protected]
5‘Angelo De Gasperis’ Cardiothoracic and Vascular Department, Niguarda Ca’ Granda Hospital, Milan, Italy