Name	Info	Provider	Link
	free resource	International Scientific Literature, Ltd.	https://www.medscimonit.com/download/index/idArt/917157
Coma	free resource	MedlinePlus Health Information	https://medlineplus.gov/coma.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31326972/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/31326972