1. Department of Wildlife, Fish and Environment, National Veterinary Institute of Sweden, SE-751 89 Uppsala, Sweden
2. Section of Arctic Veterinary Medicine, Department of Food Safety and Infection Biology, Norwegian School of Veterinary Science, PO Box 6204, NO-9292, Tromsø, Norway
3. Faculty of Forestry and Wildlife Management, Hedmark University College, Evenstad, NO-2480 Koppang, Norway
4. Grimsö Wildlife Research Station, Department of Conservation Biology, Swedish University of Agricultural Sciences, SE-730 91 Riddarhyttan, Sweden
5. Vaikijaur 617, SE-962 99 Jokkmokk, Sweden
6. Section of Anesthesiology and Emergency and Critical Care, Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, PO Box 7018, SE-750 07 Uppsala, Sweden