[1] Cantonal Hosp Lucerne, Dept Thorac Surg, Luzern, Switzerland
[2] Cantonal Hosp Lucerne, Dept Hematol, Luzern, Switzerland
[3] Hosp Univ Puerta de Hierro Majadahonda, Dept Med Oncol, Madrid, Spain
[4] 424 Gen Mil Hosp, Dept Thorac Surg, Thessalonild, Greece
[5] Univ Coll London Hosp, Dept Thorac Surg, London, England
[6] IRCSS Azienda Osped Univ, Div Thorac Surg, Bologna, Italy
[7] Univ Ottawa, Childrens Hosp Eastern Ontario, Div Anat Pathol, Ottawa, ON, Canada
[8] Univ Bern, Bern Univ Hosp, Div Thorac Surg, Bern, Switzerland