Sakurai, Tohru
Tonegawa, Yutaka
Kitagawa, Takuya
Nowada, Motoharu
Yamawaki, Ayako
Mukai, Toshifumi
Kokubun, Susumu
Yamamoto, Tatsundo
Tsuruda, Koichiro
Article History
Received: 9 December 1997
Revised: 15 October 1998
Accepted: 16 October 1998
First Online: 6 June 2014
Free to read: This content has been made available to all.