Name	Info	Provider	Link
	subscription/membership/fee required	American Physical Society	https://link.aps.org/abstract/PRL/v117/p134301
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27715110/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27715110
	free resource	scite Smart Citations	https://scite.ai/reports/27715110