Name	Info	Provider	Link
Pain	free resource	MedlinePlus Health Information	https://medlineplus.gov/pain.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34014258.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34014258/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34014258
	free resource	scite Smart Citations	https://scite.ai/reports/34014258
	subscription/membership/fee required	Silverchair Information Systems	https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/10.1001/jamaoto.2021.0870