Assertion: ngf | /r/CapableOf | act as co - fac tor
Facets:
value: in enhancing the att achment
type: TEMPORAL
Source sentences:
text: These results are consistent with pr eviously reported data that suggested that NGF acted as a co - fac tor in enhancing the att achment and differe ntiation of cells, however , the surface coating itself was found to be the main factor determining t he extent to which cells would attach to surfaces.