Name	Info	Provider	Link
	free resource	Atypon	https://www.science.org/doi/abs/10.1126/sciadv.1500391?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26601232/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26601232
Full text from University of California eScholarship	free resource	eScholarship, California Digital Library, University of California	https://escholarship.org/uc/item/1zs03987
	free resource	scite Smart Citations	https://scite.ai/reports/26601232