Assertion: collagen's use | /r/HasProperty | due
Facets:
value: as previously
type: TEMPORAL
Source sentences:
text: However, it should also be noted that the study by Haugh et al. used collagen-glycosaminoglycan scaffolds and the increased cellular attachment found here could be due to the retention of the Coll within the bundles due to the crosslinking, as previously shown17,59.