[1] Univ Med Ctr Hamburg Eppendorf, Univ Canc Ctr Hamburg, Dept Oncol Hematol & Bone Marrow Transplantat, Sect Pneumol, Martinistr 52, D-20246 Hamburg, Germany
[2] Univ Med Ctr Hamburg Eppendorf, Dept Gen Visceral & Thorac Surg, Martinistr 52, D-20246 Hamburg, Germany
[3] Univ Med Ctr Hamburg Eppendorf, Dept Diagnost & Intervent Radiol & Nucl Med, Martinistr 52, D-20246 Hamburg, Germany
[4] Univ Ctr Hamburg Eppendorf, Inst Med Microbiol Virol & Hyg, Martinistr 52, D-20246 Hamburg, Germany
[5] Univ Med Ctr Hamburg Eppendorf, Univ Canc Ctr Hamburg, Mildred Scheel Canc Career Ctr, Martinistr 52, D-20246 Hamburg, Germany