Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29226104/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29226104
	free resource	scite Smart Citations	https://scite.ai/reports/29226104
	free resource	Xia & He Publishing Inc.	https://doi.org/10.14218/JCTH.2017.00012