RT Journal Article SR Electronic T1 Current status of early gastric cancer screening research JF Cancer Biology & Medicine JO Cancer Biology & Medicine FD China Anti-Cancer Association SP 218 OP 222 DO 10.20892/j.issn.2095-3941.2023.0377 VO 21 IS 3 A1 Can Hu A1 Li Yuan A1 Xiangdong Cheng YR 2024 UL http://www.cancerbiomed.org/content/21/3/218.abstract