Name	Info	Provider	Link
	free resource	BioMed Central	https://ro-journal.biomedcentral.com/articles/10.1186/s13014-021-01968-2
Head and Neck Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/headandneckcancer.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34952608/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34952608
Full text from	free resource	Kyoto University Research Information Repository - Articles	http://hdl.handle.net/2433/275655