1. Drug Safety and Research Development; Pfizer, Inc.; Cambridge; MA; USA
2. Covance Laboratories, Inc.; Greenfield; IN; USA
3. Huntingdon Life Sciences; East Millstone; NJ; USA
4. Alpha-Omega Veterinary Consultant Services; Lafayette; NJ; USA
5. Labor am Zugersee; Hünenberg; Switzerland
6. Department of Pathology; Amgen, Inc.; Thousand Oaks; CA; USA
7. SciComPro-LLC; Phoenix; AZ; USA
8. MPI Research; Mattawan; MI; USA
9. Department of Pathology; Massachusetts General Hospital; Harvard Medical School; Boston; MA; USA
10. Department of Pathobiology; University of Illinois; Urbana; IL; USA
11. Clinical Pathology; Charles River Laboratories; Reno; NV; USA
12. Discovery Toxicology; Bristol-Myers Squibb Company; Lawrenceville; NJ; USA