Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0039-6109(21)00130-4
Emergency Medical Services	free resource	MedlinePlus Health Information	https://medlineplus.gov/emergencymedicalservices.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34800385/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34800385
	subscription/membership/fee required	W.B. Saunders	http://journals.elsevierhealth.com/retrieve/pii/S0039-6109(21)00130-4
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0039-6109(21)00130-4