1. Clinical Department for Hospital Hygiene, Medical University of Vienna, Vienna, Austria.
2. Institute for Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany.
3. Syntactx, New York, New York.
4. Division for Medical-technical Hygiene, Institute for Hygiene and Applied Immunology, Medical University of Vienna, Vienna, Austria.
5. University of New South Wales, NSW Medicine, UNSW Australia, Sydney, Australia.
6. Hõpitaux Universitaires d'l Ouest Parisien (APFHP), Université de Versailles St. Quentin en Yvelines, France.
7. Department of Surgery, St. Mary's Hospital, Imperial College, London, United Kingdom.
8. Department for Vascular and Endovascular Surgery, Wilhelminen Hospital Vienna, Vienna, Austria.