1. Department of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University, Jeju, Korea.
2. Department of Molecular Anatomy, School of Medicine, University of the Ryukyus, Nishihara, Japan.
3. Eco-friendly Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea.
4. Department of Veterinary Anatomy, College of Veterinary Medicine, Chonnam National University, Gwangju, Korea.