Name Info Provider Link
Helicobacter Pylori Infections free resource MedlinePlus Health Information https://medlineplus.gov/helicobacterpyloriinfections.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=11293440.ui
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1097/00042737-200103000-00002