Name Info Provider Link
Esophageal Cancer free resource MedlinePlus Health Information https://medlineplus.gov/esophagealcancer.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19464917.ui
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/ejcts/article-lookup/doi/10.1016/j.ejcts.2009.03.042