1. Cosmetics Laboratory, Kanebo Ltd.; Kotobuki-cho 5-3-28 Odawara Kanagawa 250 Japan
2. Department of Dermatology; Tokai University School of Medicine; Bohseidai Isehara Kanagawa 259-11 Japan
3. Department of Dermatology; National Children's Hospital; Taishido 3-35-31 Setagaya-ku Tokyo 154 Japan