1. Department of Pathology, Center for Reproduction of Endangered Species, Zoological Society of San Diego, San Diego, CA
2. Department of Veterinary Pathology, Armed Forces Institute of Pathology, Washington, DC
3. Veterinary Services, San Diego Wild Animal Park, Zoological Society of San Diego, San Diego, CA
4. Department of Parasitic and Infectious Diseases Pathology, Armed Forces Institute of Pathology, Washington, DC
5. Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, GA