Name	Info	Provider	Link
Pain	free resource	MedlinePlus Health Information	https://medlineplus.gov/pain.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29805252/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29805252
	free resource	Dove Medical Press	https://dx.doi.org/10.2147/CIA.S161052
	free resource	scite Smart Citations	https://scite.ai/reports/29805252