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CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY, Volume 6, Issue 2,2000, Pages 176-181, doi:10.3321/j.issn:1006-687X.2000.02.016
CHINESE JOURNAL OF APPLIED & ENVIRONMENTAL BIOLOGY, Volume 6, Issue 2,2000, Pages 191-193, doi:10.3321/j.issn:1006-687X.2000.02.019