From: Local-regional control according to surrogate markers of breast cancer subtypes and response to neoadjuvant chemotherapy in breast cancer patients undergoing breast conserving therapy
HR+/HER2-
N= 309
HR+/HER2+
N= 51
HR-/HER2+
N= 42
HR-/HER2-
N= 193
Local
4
2
14
Regional
1
5