In the Brief Report titled “Intrinsic Subtype Switching and Acquired ERBB2/HER2 Amplifications and Mutations in Breast Cancer Brain Metastases,”1 published online December 7, 2016, Supplement 2 was omitted when the article was initially published. This article was corrected online.
Supplement 2 Added. JAMA Oncol. Published online January 05, 2017. doi:10.1001/jamaoncol.2016.6886