Name Info Provider Link
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=0009-9201&volume=66&issue=3&spage=516&aulast=Cohen
Anal Cancer free resource MedlinePlus Health Information https://medlineplus.gov/analcancer.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=37439541.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/37439541/
subscription/membership/fee required Wolters Kluwer https://dx.doi.org/10.1097/GRF.0000000000000789