Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-00663-1, published online 25 April 2017

In Figure 2 the subgroup order is incorrect.

Figure 2
figure 2

Kaplan-Meier curves of overall survival (OS) in HER2-positive metastatic breast cancer (MBC) patients according to hormone receptor (HR) status and trastuzumab-containing palliative therapy (trast+/−).

HR+HER2+, trast+

HR−HER2+, trast−

HR+HER2+, trast+

HR−HER2+, trast−

should read:

HR+HER2+, trast+

HR−HER2+, trast+

HR+HER2+, trast−

HR-HER2+, trast−

The correct Figure appears below.