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Authors
Hamaguchi, Kenji
Tsuboi, Yohko
Imanishi, Kensuke
Koyama, Katsuji
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Article History
Received: 20 June 2000
Revised: 1 November 2000
Accepted: 29 November 2000
First Online: 26 June 2014
Free to read: This content has been made available to all.
