Figure 2From: Breast cancer biological subtypes and protein expression predict for the preferential distant metastasis sites: a nationwide cohort studyAssociations between four biological subtypes of breast cancer and the first sites of distant metastases. The dark-shaded (lower) parts of the columns depict the proportion of cancers that gave rise to more than one first metastatic site. The total number of metastatic sites is provided in each panel. ER, estrogen receptor; HER2, human epidermal growth factor receptor-2.Back to article page