Name	Info	Provider	Link
	subscription/membership/fee required	Atypon	https://journals.sagepub.com/doi/10.1177/096368979500400306?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/096368979500006J
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:7640867