| O-PS1 | →3)-α-l-Rhap4NAc-(1→4)-α-d-GalpNAc-(1→3)-α-l-Rhap4NAc-(1→ | ||
| A | C | D | |
| O-PS2 | →2)-α-l-Rhap4NAc-(1→ | ||
| B | |||
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