1. Charles River Laboratories Edinburgh Ltd., Tranent, United Kingdom
2. GEMpath, Inc., Longmont, CO, USA
3. Tox Path Specialists, LLC, Frederick, MD, USA
4. Merck Healthcare KGaA, Darmstadt, Germany
5. Consultants in Veterinary Pathology, Inc., Murrysville, PA, USA
6. Ipsen Innovation, Les Ulis, France
7. BASF SE, Ludwigshafen, Germany
8. Independent Consultant, Bad Duerkheim, Germany
9. Experimental Pathology Laboratories (EPL), Inc., Research Triangle Park, NC, USA
10. National Toxicology Program (NTP), US National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC, USA
11. AnaPath GmbH, Oberbuchsiten, Switzerland
12. Experimental Pathology Laboratories (EPL), Inc., Durham, NC, USA
13. BioSafety Research Center, Inc. (BSRC), Iwata, Japan
14. Covance Laboratories, Inc., Madison, WI, USA
15. Tokyo University of Agriculture and Technology, Laboratory of Veterinary Pathology, Tokyo, Japan