Treating chronic atrophic gastritis: identifying sub-population based on real-world TCM electronic medical records oleh Yu-man Wang, Jian-hui Sun, Jian-hui Sun, Run-xue Sun, Run-xue Sun, Xiao-yu Liu, Jing-fan Li, Run-ze Li, Yan-ru Du, Yan-ru Du, Yan-ru Du, Xue-zhong Zhou