1. Research Department Rehabilitation Clinic RehaClinic, Bad Zurzach, Switzerland
2. Department of Angilogy, Department Rehabilitation Clinic RehaClinic, Bad Zurzach, Switzerland
3. Research Department Rehabilitation Clinic RehaClinic, Bad Zurzach, Switzerland, and Department of Rheumatology, Rehabilitation Clinic RehaClinic, Bad Zurzach, Switzerland
4. Clinic for Angiology, University Hospital Zürich, Switzerland