1 Medical University Vienna, Department of Medicine II, Division of Angiology, Vienna, Austria. Electronic address: gerit.schernthaner@meduniwien.ac.at.
2 Medical University Vienna, Department of Medicine II, Division of Angiology, Vienna, Austria; Rudolfstiftung Hospital, Department of Medicine I, Vienna, Austria.
3 Medical University Vienna, Center of Pathobiochemistry and Genetics, Department of Medical Chemistry, Vienna, Austria.