[1] ITO Co Ltd, Provitamin Res Ctr, Tokyo, Japan
[2] Osame Skin Clin, Nagano, Japan
[3] Clin F, Tokyo, Japan
[4] Keio Univ, Fac Pharm, Div Phys Pharmaceut Chem, Tokyo 108, Japan
[5] Seiwa Kasei Co Ltd, Higashiosaka, Osaka, Japan
[6] Tokyo Univ Technol, Sch Biosci & Biotechnol, Tokyo, Japan
[7] Bk Bio Co Ltd, Songnam, South Korea