Crohn's disease websites
https://www.connectingtocure.org/
https://www.cdc.gov/ibd/what-is-IBD.htm
https://www.mayoclinic.org/diseases-conditions/crohns-disease/symptoms-causes/syc-20353304
https://www.niddk.nih.gov/health-information/digestive-diseases/crohns-disease
https://www.athletesvscrohns.org/
https://www.healio.com/news/gastroenterology/20161206/nih-grants-10-million-for-cedarssinai-research-in-ibd-genetics