1. University of Nicosia , Medical School, Nicholas St 93, Egkomi Lefkosias 2408, Nicosia, Cyprus
2. Klinik Hirslanden Zürich Surgery, , Chirurgisches Zentrum, Witellikerstrasse 40, 8032 Zurich, Switzerland
3. Institute for Histology and Cytology Diagnosis, AG, Dammweg 1, 5000 Aarau, Switzerland
4. Klinik Hirslanden Zürich Vascular Surgery, , Aorten und Gefässzentrum - Witellikerstrasse 40, 8032 Zürich, Switzerland
5. University of Zürich , Rämistrasse 71, 8006 Zürich, Switzerland