P151 The prediction of Oncotype DX risk group using clinicopathologic factors in patients with HR+/HER2- early breast cancer - R. Song; D.-E. Lee; S. Lee; H.-S. Kang; J.H. Han; K.S. Lee; S.H. Sim; H. Chae; Y. Kwon; J. Woo; M. Lee; E.-G. Lee; et al. (Breast, 2023)