Institution: | 1Department of Veterinary Pathobiology, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea.;2Department of Veterinary Anatomy, College of Veterinary Medicine, Konkuk University, Seoul 143-701, Korea.;3Department of Veterinary and Biomedical Sciences and Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, Nebraska, 68583-0900, USA. |