Links[1] https://www.ncri.ie/cancers/breast [2] https://www.ncri.ie/https [3] https://www.ncri.ie/sites/ncri/files/pubs/papers/BreastCancer_Socioeconomic_journal.pone_.0111729.pdf [4] http://dx.plos.org/10.1371/journal.pone.0111729