1Department of Veterinary Medicine, Cheju National University, Jeju, 690-756, Korea.
2Department of Veterinary Pathology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Korea.
3Department of Theriogenology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Korea. JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/