Assertion: main bronchus | /r/HasProperty | affected
Facets:
value: less often
type: DEGREE
value: most commonly
type: DEGREE
Source sentences:
text: The lower trachea and main bronchi are most commonly affected.
text: Characteristic endoscopic findings supporting TO diagnosis include hard whitish spicules, deriving from both the anterior and lateral tracheal wall, which project into the tracheal lumen , while main bronchi and larynx are less often affected .