6 Maisonneuve Maisonneuve P P Disalvatore Disalvatore D D Rotmensz Rotmensz N N Curigliano Curigliano G G Colleoni Colleoni M M Dellapasqua Dellapasqua S S Proposed new clinicopathological surrogate definitions of luminal A and luminal B (HER2-negative) intrinsic breast cancer subtypes Proposed new clinicopathological surrogate definitions of luminal A and luminal B (HER2-negative) intrinsic breast cancer subtypes Breast Cancer Res Breast Cancer Res 2014 2014 16 16 R65 R65 R65 R65 10.1186/bcr3679 10.1186/bcr3679 24951027 24951027. This evidence concerns the gene ERBB2 and breast cancer.