[1] Ludwig-Maximilian University Munich,Department of Internal Medicine V
[2] Comprehensive Pneumology Center (CPC-M),IBE
[3] Ludwig-Maximilian University, Institute for Medical Information Processing, Biometry and Epidemiology
[4] and Helmholtz Center Munich,Department of Pneumology, Asklepios Fachkliniken Muenchen
[5] Member of the German Center for Lung Research (DZL),Gauting
[6] Ludwig-Maximilian University Munich,Department of Pneumology and Respiratory Medicine, Hospital Schillerhoehe
[7] Academic Teaching Hospital of the University of Munich,undefined
[8] Academic Teaching Hospital of the University of Tuebingen,undefined