1. Swiss Cardiovascular Center, Division of Angiology, Bern University Hospital, Switzerland
2. Department of Clinical Research, University of Bern, Switzerland Institute of Social and Preventive Medicine (ISPM), University of Bern, Switzerland
3. Department of Surgery, Vajira Hospital, Thailand Division of Vascular Surgery, Navamindradhiraj University, Thailand
4. Clinical and Interventional Angiology, Swiss Cardiovascular Center, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland