Name	Info	Provider	Link
	subscription/membership/fee required	Australasian Medical Publishing Company	https://www.mja.com.au/public/issues/184_09_010506/den10455_fm.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=16646742.ui
	subscription/membership/fee required	Wiley	https://doi.org/10.5694/j.1326-5377.2006.tb00314.x