1. Applied Bioresearch Center, Corporate Research and Development Division, Kirin Brewery Co. Ltd, Gunma,
2. Laboratory of Anatomy, Postgraduate School of Veterinary Medicine, Hokkaido University, Sapporo,
3. Department of Internal Medicine, Shiga University of Medical Science, Shiga,
4. Second Department of Medicine, Kurume University School of Medicine, Kurume and
5. Keio Cancer Center, School of Medicine, Keio University, Tokyo, Japan