1. Laboratory of Veterinary Pharmacokinetics and Pharmacodynamics, College of Veterinary Medicine, Kyungpook National University, Daegu 702–701, Republic of Korea
2. Department of Equine Industry, Korea National College of Agriculture and Fisheries, Hwaseong 445–760, Republic of Korea
3. Center for Nutraceutical and Pharmaceutical Materials, Division of Bioscience and Bioinformatics, Science campus, Myongji University, Yongin 449–728, Gyeonggi, Republic of Korea
4. College of Veterinary Medicine, Chonnam National University, Gwangju 500–757, Republic of Korea