Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=23857628.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23857628/
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/s40271-013-0020-5
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/23857628
	free resource	scite Smart Citations	https://scite.ai/reports/23857628