1. 1) Ministry of Health, Labor and Welfare, Report of the investigation into the actual conditions of diabetes mellitus (2005).
2. 2) WHO: Definition, diagnosis and classification of diabetes mellitus and its complication report of a WHO consultation. Part 1: Diaganosis and classification of diabetes mellitus, WHO Geneva (1999).
3. 3) Sakurai H., Kagakukohgyo, 57, 249-254 (2006).
4. 4) Sakurai H., “Encyclopedia of Bio-elements, Pharmaceuticals and Metal Elements,” ed. by Sakurai H., Ohmsha, Tokyo, 2006, pp. 282-287.
5. 5) Sakurai H., Kojima Y., Yoshikawa Y., Kawabe K., Yasui H., Coord. Chem. Rev., 226, 187-198 (2002).