Name Info Provider Link
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=1021-335X&volume=18&issue=5&spage=1107&aulast=Silva
Oral Cancer free resource MedlinePlus Health Information https://medlineplus.gov/oralcancer.html
subscription/membership/fee required Spandidos Publications https://www.spandidos-publications.com/or/18/5/1107