Assertion: collagen | /r/AtLocation | fibroblast
Facets:
Source sentences:
text: Two weeks after the collagen is added to the fibroblasts, the extracted keratinocytes are thawed and seeded onto the new dermal skin.
text: Two weeks after the collagen is added to the fibroblasts, the extracted keratinocytes are thawed and seeded onto the new dermal skin.