Assertion: temporal bone's structure | /r/HasProperty | classified into extrinsic fissures
Facets:
value: previously
type: TEMPORAL
Source sentences:
text: pseudofractures.8 The interpreting radiologist should have a good working knowledge of the normal appearance of these structures, which have previously been classified into extrinsic fissures and sutures, intrinsic fissures, and intrinsic channels.