In the original version of this article (1), the stated disclosure of the author Carlos L. Arteaga is incorrect. The error has been corrected in the latest online HTML and PDF versions of the article. The authors regret this error.

1.
Guerrero-Zotano
AL
,
Stricker
TP
,
Formisano
L
,
Hutchinson
KE
,
Stover
DG
,
Lee
KM
, et al
ER+ breast cancers resistant to prolonged neoadjuvant letrozole exhibit an E2F4 transcriptional program sensitive to CDK4/6 inhibitors
.
Clin Cancer Res
2018
;
24
:
2517
29
.