Kong, Y.
Yang, A.
Xie, X.
Zhang, J.
Xu, H.
Li, M.
Lyu, N. http://orcid.org/0000-0002-8254-1040
Wei, W.
Article History
Received: 27 March 2020
Accepted: 25 June 2020
First Online: 6 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This retrospective study was approved by the Ethical Review Committee of Sun Yat-sen University Cancer Center and conducted following the principles of the Declaration of Helsinki. Nine hundred and forty-five consecutive female patients diagnosed with pathologic N2–3 (pN2–3) invasive breast cancer between October 2008 and December 2014 were identified from a total of 7042 patients with breast cancer in the Sun Yat-Sen University Cancer Center Database.
: Patients’ informed consent was obtained before conducting the treatment.