<https://aacrjournals.org/cebp/article/14/8/1874/258087/Trends-in-Helicobacter-pylori-Infection-and>
<http://schema.org/url>
<https://dx.doi.org/10.1158/1055-9965.EPI-05-0113>
<https://aacrjournals.org/cebp/article/14/8/1874/258087/Trends-in-Helicobacter-pylori-Infection-and>