Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=0965-0407&volume=26&issue=8&spage=1285&aulast=Li
Esophageal Cancer	free resource	MedlinePlus Health Information	https://medlineplus.gov/esophagealcancer.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29386089/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29386089
	free resource	scite Smart Citations	https://scite.ai/reports/29386089