血清胃蛋白酶原Ⅰ、Ⅱ在萎缩性胃炎和早期胃癌诊断中的价值
혈청위단백매원Ⅰ、Ⅱ재위축성위염화조기위암진단중적개치
The value of PG Ⅰ , PG Ⅱ in diagnosis of atrophic gastritis and early gastric cancer
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