Name Info Provider Link
Medicaid free resource MedlinePlus Health Information https://medlineplus.gov/medicaid.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30887623.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30887623/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/30887623
subscription/membership/fee required Wiley https://doi.org/10.1002/hec.3873