Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/0092-8674(91)90148-R
	free resource	GlyGen glycoinformatics resource	https://glygen.org/publication/PubMed/1712671/
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1776
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:1712671