- Correspondence to:
Dr K Sonoyama
Laboratory of Food Biochemistry, Graduate School of Agriculture, Hokkaido University, Kita-9, Nishi-9, Kita-ku, Sapporo-shi, 060-8589, Japan;
- Accepted December 31, 2005
- Revised December 25, 2005
- First published January 19, 2006.
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