Erik HofmeisterDepartment of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-6610. Present address is Veterinary Medical and Surgical Group, 2227 Portola Rd, Ventura, CA 93003.
Glenn H. CantorDepartment of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-6610.
Christiane V. LöhrDepartment of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-6610.