Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27943071/
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/8904_2016_27
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27943071
	free resource	scite Smart Citations	https://scite.ai/reports/27943071