by Kusama, Kaoru, Iwanari, Shinkichi, Aisaki, Kunio, Wada, Masahiko, Ohtani, Jun, Itoi, Kentaro, Hanai, Ken-ichi, Shimizu, Kouji, Komiyama, Kazuo, Kudo, Itsuro, Moro, Itaru
Published in Journal of Nihon University School of Dentistry (1997)