1. Department of Biomedical Sciences Section of Anatomic Pathology College of Veterinary Medicine Cornell University Ithaca NY 14853 USA
2. Microbiology and Immunology Department Harvard Medical School Boston MA 02115 USA
3. Metabiota, Inc 1611 Bowen Road Nanaimo British Columbia V9S 1G5 Canada
4. Department of Clinical Studies New Bolton Center School of Veterinary Medicine 382 West Street Rd. Kennett Square PA 19348 USA