Name	Info	Provider	Link
	free resource	GlyGen glycoinformatics resource	https://glygen.org/publication/PubMed/21336785/
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21336785.ui
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/s00415-011-5934-z