by Koike, Kazuyoshi, Kikkawa, Keiitirou, Hara, Kazuhiko, Shinozaki, Takahiro, Hukatsu, Yasuhito, Okazi, Sayumi, Shibata, Noriaki, Hasegawa, Kazuya, Osawa, Ichirou, Matsuura, Nobuhito, Gotoh, Minoru, Kudo, Itsurou
Published in Japanese Journal of Psychosomatic Dentistry (1997)