1. Central Research LaboratoryThe Nisshin OilliO Group, Ltd. 1 Shinmori‐Cho, Isogo‐ku Yokohama Kanagawa 235‐8558 Japan
2. The Nisshin OilliO Group, Ltd. 1 Shinmori‐Cho, Isogo‐ku Yokohama Kanagawa 235‐8558 Japan
3. Kato Clinic 1‐1‐1 Nakaizumi Komae Tokyo 201‐0012 Japan