Miyamachi, Hiroki
Iwakiri, Kazuhiro
Yakiwara, Hiroshi
Goto, Kazuhiko
Kakuta, Toshiki
Article History
Received: 4 September 1998
Revised: 6 February 1999
Accepted: 6 February 1999
First Online: 6 June 2014
Free to read: This content has been made available to all.