Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S2666-1667(21)00029-0
Pain	free resource	MedlinePlus Health Information	https://medlineplus.gov/pain.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33598658/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33598658
	free resource	scite Smart Citations	https://scite.ai/reports/33598658