Assertion: osteoclast | /r/HasProperty | maintained in 20%
Facets:
value: for 7 days
type: TEMPORAL
Source sentences:
text: Osteoclasts formed from mouse marrow on ivory discs maintained in 20% O 2 for 7 days were small (generally <3 nuclei); small resorption trails were associated with these TRAP‐positive cells, including cells that appeared to possess only a single nucleus (Fig. 1A ).