Name Info Provider Link
subscription/membership/fee required HighWire https://sti.bmj.com/lookup/pmidlookup?view=long&pmid=34544886
Syphilis free resource MedlinePlus Health Information https://medlineplus.gov/syphilis.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34544886.ui