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Citation
Zhu HM, Li BY, Tang Z, She J, Liang XY, Dong LK, Zhang M. Epidemiological investigation of Helicobacter pylori infection in elderly people in Beijing. World J Clin Cases 2020; 8(11): 2173-2180 [PMID: 32548147 DOI: 10.12998/wjcc.v8.i11.2173]
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