[1] Univ Giessen & Marburg Lung Ctr UGMLC, Inst Lung Hlth ILH, Cardiopulm Inst CPI,German Ctr Lung Res DZL, Med Clin 2,Dept Internal Med, Giessen, Germany
[2] Univ Hosp Giessen, Dept Radiol, Giessen, Germany
[3] Justus Liebig Univ Giessen, Univ Giessen & Marburg Lung Ctr UGMLC, Dept Pathol, Giessen, Germany
[4] Univ Giessen & Marburg Lung Ctr UGMLC, Inst Lung Hlth ILH, Cardio Pulm Inst CPI, Dept Internal Med 5,German Ctr Lung Res DZL, Giessen, Germany