1. Chair of Food Safety, Veterinary Faculty, Ludwig-Maximilians-University Munich (LMU), Oberschleissheim, Germany
2. Nature Conservation Foundation Schleswig-Holstein, Tansy Ragwort Competence Centre, Molfsee, Germany
3. QSI – Quality Services International GmbH, Bremen, Germany
4. Institut für Pharmazeutische Biologie, Technische Universität Braunschweig (TUB), Braunschweig, Germany