Affiliation: | aDepartment of Thoracic Surgery, Hospital Universitari de Bellvitge, Feixa Llarga s/n, 08907-L’Hospitalet de Llobregat, Barcelona, Spain bDepartment of Thoracic Surgery and Unit of Human Anatomy, Hospital Universitari de Bellvitge, School of Medicine, University of Barcelona, L’Hospitalet de Llobregat, Barcelona, Spain |