Urbinati, S., P. Faggiano, F. Colivicchi, C. Riccio, M. G. Abrignani, A. Genovesi-Ebert, F. Fattirolli, S. De Feo, S. Gambetti, and M. Uguccioni. “After ACC/AHA and ESC Guidelines Pre-Operative Cardiological Evaluation in Non-Cardiac Surgery: Certainties, Controversial Areas and Opportunities for a Team Approach”. Monaldi Archives for Chest Disease, vol. 76, no. 3, Dec. 2015, doi:10.4081/monaldi.2011.183.