[1] Thoraxklin Heidelberg, Thoraxklin, Dept Pneumol & Resp Crit Care Med, D-69126 Heidelberg, Germany
[2] Thoraxklin Heidelberg, Thoraxklin, Dept Diagnost & Intervent Radiol Nucl Med, D-69126 Heidelberg, Germany
[3] Univ Heidelberg Hosp, Inst Pathol, D-69120 Heidelberg, Germany
[4] TLRC Heidelberg, D-69126 Heidelberg, Germany