TO THE EDITOR: I read with great interest the prospective study by Gao et al. demonstrating that serial 68Ga-HER2 PET/CT performed after 2 cycles of neoadjuvant therapy and before surgery predicts pathologic complete response (pCR) in human epidermal growth factor receptor 2 (HER2)–positive
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Kadri Altundağ (2026) studied this question.
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