Institution: | 1. Animal Parasitic Diseases Laboratory, Agricultural Research Service, USDA, Beltsville, MD 20705, USA;2. Shangdong Binzhou Academy of Animal Science and Veterinary Medicine, Binzhou City, Shandong 256600, China;3. Department of Medicine, Yale University School of Medicine, New Haven, CT 06520, USA;4. College of Veterinary Medicine and Animal Science, Jilin University, Changchun, China |