[A Case of HER2-Positive Unresectable Advanced Gastric Cancer Showing Long-Term Complete Response Treated by Only Chemotherapy]
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A 78-year-old man was diagnosed as HER2-positive unresectable advanced gastric cancer(cT4aN3M1[LYM], Stage Ⅳ). After 2 courses of first-line chemotherapy(S-1 plus oxaliplatin plus trastuzumab), PR was achieved. The treatment could not be continued due to adve... ...
