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/25048508/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/25048508
	free resource	Yonsei University College of Medicine	https://www.eymj.org/DOIx.php?id=10.3349/ymj.2014.55.5.1436
	free resource	scite Smart Citations	https://scite.ai/reports/25048508