Guidelines for improvement of the procedural aspects of devices and surgical instruments in the operating theatre oleh P. G. Calò, P. G. Calò, F. Catena, D. Corsaro, L. Costantini, F. Falez, B. Moretti, V. Parrinello, E. Romanini, A. Spinarelli, F. Venneri, G. Vaccaro, G. Vaccaro, Scientific Technical Committee, G. Vaccaro, L. Costantini, D. Corsaro