Affiliation: | 1. Thoracic Surgery Unit, Santa Corona Hospital, Via XXV Aprile 38, 17027, Pietra Ligure, SV, Italy 2. Thoracic Surgery Unit, National Cancer Institute, A.O.U San Martino-IST, Largo Benzi 10, 16132, Genoa, Italy 3. Clinical Epidemiology Unit, IRCCS-A.O.U San Martino-ST, Genoa, Italy
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