[1] Univ Med Ctr, Dept Pneumol, D-79106 Freiburg, Germany
[2] Med Univ Lubeck, Med Univ Schleswig Holstein, Inst Human Genet, D-23538 Lubeck, Germany
[3] Univ Kiel, Inst Clin Mol Biol, D-24105 Kiel, Germany
[4] Res Ctr Borstel, Dept Clin Med, D-23845 Borstel, Germany
[5] Univ Kiel, Dept Gen Internal Med, D-24105 Kiel, Germany