Assertion: spheroid's cell | /r/CapableOf | form outer shell
Facets:
value: around clustered sftpc
type: OTHER
Source sentences:
text: CD90 + stromal cells formed an outer shell around clustered SFTPC + (alveolar type II epithelial cells) and CCSP + (club cells) lung progenitor cells (Fig. 1 DI–1DIV).