Name	Info	Provider	Link
	free resource	Digital CSIC Spanish National Research Council	http://hdl.handle.net/10261/174664
	subscription/membership/fee required	International Union of Crystallography	http://scripts.iucr.org/cgi-bin/paper?S2059798317015121
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29533236/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29533236
	free resource	scite Smart Citations	https://scite.ai/reports/29533236