[1] Vorarlberg Inst Vasc Investigat & Treatment VIVIT, Feldkirch, Austria
[2] Acad Teaching Hosp Feldkirch, Med I, Feldkirch, Austria
[3] Private Univ Principal Liechtenstein, Triesen, Liechtenstein
[4] Med Cent Labs, Feldkirch, Austria
[5] Drexel Univ, Coll Med, Philadelphia, PA USA
[6] Vorarlberger Landeskrankenhausbetriebsgesellsch, Feldkirch, Austria