“Curative Conversion of Metastatic Gastric Cancer After Pembrolizumab-Trastuzumab-Based Therapy in a PD-L1-Negative, HER2-Positive Patient: A Case Report and Literature Review”. MENA Journal of Case Reports, vol. 1, no. 1, May 2026, pp. 30-38, https://doi.org/10.64913/mmrmjcr.v1i1.21.