Assertion: mastoid process | /r/HasProperty | acellular
Facets:
value: in the remaining 20%
type: OTHER
value: bilaterally
type: DEGREE
Source sentences:
text: If the mastoid process is acellular, is it sclerotic or diploetic?
text: Normally, the mastoid processes are bilaterally cellular in 80% of the population, while in the remaining 20%, they are bilaterally acellular.