Name	Info	Provider	Link
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30395107.ui
	subscription/membership/fee required	Wolters Kluwer	https://doi.org/10.1097/PCC.0000000000001805
Full text from	free resource	White Rose Research Online	https://eprints.whiterose.ac.uk/139221/