P173. The Clinical Treatment Score post 5 years (CTS5) as a predictor of the oncotype DX-21 recurrence score (ODX); A retrospective review of a prospectively maintained database. Issue 5 (May 2021) - Shrestha, Amber; Cullinane, Carolyn; Evoy, Denis; Geraghty, James; Rothwell, Jane; McCartan, Damian; McDermott, Enda; Prichard, Ruth