P263 Patients' perspectives on treatments for HR+/HER2– early breast cancer: developing a quantitative patient preference survey. (April 2023) - Harmer, V.; Harbeck, N.; Boyle, F.; Werutsky, G.; Ammendolea, C.; El Mouzain, D.; Marshall, D.A.; Thomas, C.; Heidenreich, S.; Lu, H.; Dionne, P.-A.; Gao, M.; et al.