1. Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty University of Zurich Zurich Switzerland
2. Zoological Garden Karlsruhe Karlsruhe Germany
3. Zoological Garden Halle (Saale) Halle Germany
4. Copenhagen Zoo Frederiksberg Denmark
5. 1230 Oakland Street Hendersonville North Carolina USA
6. Zoological Garden of Basel Basel Switzerland
7. Twycross Zoo—East Midland Zoological Society, Norton Grange Warwickshire UK
8. Safaripark Beekse Bergen Hilvarenbeek The Netherlands