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=10364017.ui
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1111/j.1572-0241.1999.01136.x