Name	Info	Provider	Link
CPR	free resource	MedlinePlus Health Information	https://medlineplus.gov/cpr.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/35083905/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/35083905
	free resource	Yonsei University College of Medicine	https://www.eymj.org/DOIx.php?id=10.3349/ymj.2022.63.2.187