Konstanze H. PlumleeFrom the Department of Veterinary Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine, Iowa State University, Ames, IA 50011.
Joseph S. HaynesFrom the Department of Veterinary Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine, Iowa State University, Ames, IA 50011.
Karl W. KerstingFrom the Department of Veterinary Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine, Iowa State University, Ames, IA 50011.
James R. ThompsonFrom the Department of Veterinary Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine, Iowa State University, Ames, IA 50011.