1. Faculty of Natural Sciences, Department of Biochemistry; Comenius University; Bratislava Slovakia
2. Institute of Molecular Evolution; University of Düsseldorf; Düsseldorf Germany
3. Department of Biological Sciences; University of Alberta; Edmonton AB Canada
4. Faculty of Veterinary Medicine, Department of Biochemistry and Cell Biology; Utrecht University; Utrecht The Netherlands
5. Department of Medical Microbiology and Infectious Diseases; Erasmus University Medical Center; Rotterdam The Netherlands