Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0300-5712(09)00226-7
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0300-5712(09)00226-7
Full text from	free resource	CORE	https://core.ac.uk/reader/62633363?utm_source=linkout