Funding for this research was provided by:
Ligue Contre le Cancer
Cancéropôle Grand Ouest
Received: 22 January 2021
Accepted: 12 May 2021
First Online: 26 May 2021
: This retrospective research and study collection was reviewed and approved by the institutional ethics committee prior to collection (Breast Group of IUCT, license No: DC-2016-2658, collection No: DC-2016-2656). The committee approved the patient consent forms (including publication of research data). Images from tissue specimens are entirely unidentifiable and there are no details on individuals reported within the manuscript. Written informed consent was obtained from patients. This study has been declared to the French National Commission for Informatics and Liberties (CNIL): declaration No: MR4014200520.
: The consent for publication of research data was included in the consent forms and approved by the ethical committee.
: The authors declare that they have no competing interests.