Assertion: ductal lavage | /r/HasProperty | performed in the operating room
Facets:
value: on 8 breasts from 7 women
type: LOCATION
value: before mastectomy
type: TEMPORAL
Source sentences:
text: Ductal lavage was performed in the operating room before mastectomy on 44 breasts from 32 women with known cancer and on 8 breasts from 7 women undergoing prophylactic mastectomy, 2 with occult malignancy.