Figure 1From: Incorporating tumour pathology information into breast cancer risk prediction algorithmsProportion of oestrogen receptor-negative tumours from the general population. Oestrogen receptor (ER)-negative tumours as a proportion of all invasive breast cancers tested for ER expression in unselected females from the general population. Data from the Surveillance Epidemiology, and End Results database 1990 to 2006 [27].Back to article page