1809 Results of the OPTIMA (Optimal Personalized Treatment of early breast cancer usIng Multi-parameter Analysis) prelim study. (September 2015) - Stein, R.C.; Makris, A.; Hughes-Davies, L.; Bartlett, J.M.S.; Marshall, A.; Hall, P.S.; Campbell, A.; Pinder, S.E.; Cameron, D.A.; Rea, D.; Earl, H.; MacPherson, I.; et al.