Assertion: biliary ascariasis | /r/HasProperty | detected in two patients
Facets:
value: during surgery for cholelithiasis
type: TEMPORAL
value: incidentally
type: OTHER
Source sentences:
text: In two patients biliary ascariasis was detected incidentally during surgery for cholelithiasis; these patients had undergone ultrasound examination 1 and 3 weeks before surgery, respectively.