Ekholm, M. .; Grabau, D.; Bendahl, P.-O.; Bergh, J.; Elmberger, G.; Olsson, H.; Russo, L.; Viale, G.; Fernö, M. Highly Reproducible Results of Breast Cancer Biomarkers When Analysed in Accordance With National Guidelines – a Swedish Survey With Central Re-Assessment. AO 2015, 54, 1040-1048.