Name	Info	Provider	Link
	subscription/membership/fee required	Taylor & Francis	https://www.tandfonline.com/doi/full/10.1517/14712598.8.6.735
Cited by Patents in	free resource	The Lens - Patent Citations Database	https://www.lens.org/lens/search/patent/list?q=reference_cited.nlp.ids.pmid:18476785