Name	Info	Provider	Link
	free resource	GlyGen glycoinformatics resource	https://glygen.org/publication/PubMed/2551730/
	free resource	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0014-5793&date=1989&volume=255&issue=1&spage=21