Affiliation: | (1) Department of Thoracic Surgery, University of Rome, La Sapienza,, Rome, Italy;(2) Department of General Surgery, University of Rome, La Sapienza,, Rome, Italy;(3) Ist. II Clinica Chirurgica, Catt. di Chirurgia Toracica, Policlinico Umberto I°, Viale del Policlinico, 00161 Roma, Italy |