Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0016-6480(18)30647-6
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0016-6480(18)30647-6
Full text from the University of Edinburgh	free resource	Edinburgh Research Explorer, University of Edinburgh	http://hdl.handle.net/20.500.11820/d5868f66-5065-4c37-9111-b15ef27ae517