Name Info Provider Link
free resource S. Karger AG, Basel, Switzerland https://doi.org/10.1159/000268404
Liver Cancer free resource MedlinePlus Health Information https://medlineplus.gov/livercancer.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=20357448.ui