1. Associate Professor in Large Animal Surgery, Department of Large Animal Sciences; University of Copenhagen; Copenhagen Denmark
2. Professor for hygiene and environmental medicine; Knieler und Team GmbH, Infection Control Science; Hamburg Germany
3. Ernst-Moritz-Arndt University, Institute for Hygiene and Environmental Medicine; Greifswald Germany
4. Department of Health Management; Atlantic Veterinary Medicine; Charlottetown, Prince Edward Island, Canada