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Kaplan–Meier curves of individual HER2 receptor-positive breast cancer subtypes. a, b Luminal B HER2 DFS and OS (respectively). c, d HER2+(ER−) DFS and OS (respectively). DFS Disease-Free Survival, OS Overall survival, Trast +ve: Patients treated with Trastuzumab, Trats −ve +: Patients who did not receive Trastuzumab
