Funding for this research was provided by:
National Cancer Institute (P30CA016056)
Received: 24 June 2020
Accepted: 12 January 2021
First Online: 26 January 2021
Ethics approval and consent to participate
: Institutional Research Board approval was obtained from the institutional ethics board at Roswell Park Comprehensive Cancer Center (reference number: 00001124). Administrative permissions were not required to access and use the medical records described in this study and informed consent was waived due to the retrospective observational nature of the study and minimal risk of patient identification.
: Not applicable.
: The authors declare that they have no competing interests. SBE is Principal Investigator of a grant to Roswell park from Pfizer to study quality of life in breast cancer patients.