Affiliation: | 1. Mammal Research Institute, Polish Academy of Sciences, Stoczek 1, 17-230 Bialowieza, Poland;2. Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy;3. Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, 30173 Hannover, Germany |