_:b57278889	<http://www.w3.org/ns/oa#exact>	"mast cell density" .
_:b57278889	<http://www.w3.org/ns/oa#exact>	"Mast cell density" .
_:b57278889	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .