Name Info Provider Link
Ulcerative Colitis free resource MedlinePlus Health Information https://medlineplus.gov/ulcerativecolitis.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=33512800.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33512800/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/33512800
subscription/membership/fee required Wolters Kluwer https://doi.org/10.14309/ctg.0000000000000263