Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27747538/
	free resource	Springer	https://link.springer.com/article/10.1186/s40621-015-0066-z
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27747538
Full text from University of California eScholarship	free resource	eScholarship, California Digital Library, University of California	https://escholarship.org/uc/item/1fm0056v
	free resource	scite Smart Citations	https://scite.ai/reports/27747538