Name Info Provider Link
subscription/membership/fee required Atypon https://journals.sagepub.com/doi/10.1177/10668969231217631?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Hepatitis B free resource MedlinePlus Health Information https://medlineplus.gov/hepatitisb.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=38166493.ui