Correction: Clinical Significance of PIK3CA and ESR1 Mutations in Circulating Tumor DNA: Analysis from the MONARCH 2 Study of Abemaciclib plus Fulvestrant

In the original version of this article (1), the upper and lower limits for the confidence intervals for the ESR1-mutant subgroup were incorrect in Fig. 2, in the Abstract, and in the Results section of the article. The errors have been corrected in the latest online HTML and PDF versions of the article. The authors regret the errors.