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Article History

Received: 29 September 2022

Accepted: 14 February 2023

First Online: 21 February 2023

Declarations

:

: All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. TTUHSC has a Federal-Wide Assurance (FWA) # 00006767 with the Department of Health and Human Services to protect the rights and welfare of participants involved in research affiliated with the institution. All participants provided written informed consent to join the FLEX Registry (NCT03053193), a multi-center, prospective, observational trial for patients with Stage I, II, and III breast cancer. Ethical approval for this retrospective examination of patient histology and chart review using electronic health records was obtained by the TTUHSC Institutional Review Board: TTUHSC IRB# L21-175. Patients enrolled in the initial FLEX study are eligible for inclusion in sub-studies for which they meet all eligibility criteria and additional consent is not required.

: Not applicable.

: The authors declare no competing interests.