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The trisaccharides derived from peak a (A, B) or peak b (C, D) shown in Figure 4(A) were separated with SAX-HPLC before (A, C) or after (B, D) digestion with chondroitinase ABC. The standards were the same as those described in the legend to Figure 4. The elution positions of Tri-40 and Tri-44 are indicated.
