1. Department of Agriculture and Rural Development, Belfast, Northern Ireland, UK;
2. Seal Rehabilitation and Research Center, Pieterburen, The Netherlands;
3. Institute of Zoology, Regents Park, London, UK;
4. Institute of Animal Health, Pirbright, Surrey, UK;
5. Geological Institute of the Azerbaijan Republic Academy of Sciences, Baku, Azerbaijan;
6. Sea Mammal Research Unit, University of St. Andrews, Fife, UK;
7. Laboratory of Virus Ecology, Institute of Microbiology and Virology, Almaty, Kazakhstan;
8. Akademgorodok, Institute of Zoology, Almaty, Kazakhstan;
9. Caspian Environment Programme Ecotoxicology Project, Portaferry, Northern Ireland, UK