Chang S.-Y.MING-SHIANG WUCHIA-TUNG SHUNWang H.-H.Yang T.-H.Liu C.-Y.Lin J.- T.2021-03-182021-03-1819971013-7696https://scholars.lib.ntu.edu.tw/handle/123456789/553369Serum pepsinogen I, II, and the ratio of pepsinogen I / pepsinogen II in the intestinal metaplasia of the stomachjournal article2-s2.0-0030777133