1. Graduate School of Biology-Oriented Science and Technology, Kindai University, Wakayama 649-6493, Japan
2. MRC Clinical Sciences Centre, Imperial College Faculty of Medicine, W12 0NN London, UK
3. RIKEN BioResource Center, Ibaraki 305-0074, Japan
4. Laboratory of Cellular and Developmental Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Maryland 20892, USA
5. Toyama Municipal Family Park Zoo Co., Ltd., Toyama 930-0151, Japan
6. Foundation Ube Tokiwa Zoological Society, Yamaguchi 755-0001, Japan
7. Institute of Advanced Technology, Kindai University, Wakayama 642-0017, Japan