Assertion: moss | /r/HasProperty | collected for antitumor screening
Facets:
value: during april
type: TEMPORAL
Source sentences:
text: (1986), the first discovery of significant biological activity in bryophytes was KB (an in vitro assay) activity in a sample of ~500 g of the moss Polytrichum ohioense, one of nine mosses collected for antitumor screening during April 1976 (but only 7 were accounted for in screening) from deciduous forests on the Beltsville Agricultural Research Center (BARC) and adjacent forested lands extending to Laurel, Maryland.