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	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=0009-7322&volume=134&issue=5&spage=365&aulast=Jollis
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27482000/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27482000
	free resource	scite Smart Citations	https://scite.ai/reports/27482000