Study on follow-up via WeChat to promote compliance of elderly patients with early gastric cancer and precancerous lesions after endoscopic submucosal dissection
XU Zhen-zhen, JIANG Jing-wei, XU Gui-fang, LI Wen, YANG Hua, TENG Yu-fang, YANG Jin-ping
Practical Geriatrics . 2021, (7): 722 -726 .  DOI: 10.3969/j.issn.1003-9198.2021.07.015