Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1871-403X(08)00066-5
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy?issn=1871-403X&vol=2&issue=4&pgfirst=I