1 Clinical Research Group Molecular Pathology of Cystic Fibrosis, Clinic for Paediatric Pneumology, Allergology and Neonatology, Hannover Medical School, D-30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research, Hannover, Germany.
2 Clinical Research Group Molecular Pathology of Cystic Fibrosis, Clinic for Paediatric Pneumology, Allergology and Neonatology, Hannover Medical School, D-30625 Hannover, Germany; Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research, Hannover, Germany. Electronic address: tuemmler.burkhard@mh-hannover.de.