Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0039-6109(08)00153-9
Head and Neck Cancer free resource MedlinePlus Health Information https://medlineplus.gov/headandneckcancer.html
subscription/membership/fee required W.B. Saunders http://journals.elsevierhealth.com/retrieve/pii/S0039-6109(08)00153-9