Assertion: radical mastectomy | /r/HasProperty | extensive surgery
Facets:
value: subsequently
type: TEMPORAL
Source sentences:
text: This procedure is rarely performed today, because modified radical mastectomy, a less extensive surgery, has proved to be equally as effective, less disfiguring, and does not carry the risk of secondary angiosarcoma associated with this type of surgery.
text: The radical mastectomy was subsequently extended by a number of surgeons such as Sugarbaker and Urban to include removal of internal mammary lymph nodes.