| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | GlyGen glycoinformatics resource | https://glygen.org/publication/PubMed/33316032/ | |
| subscription/membership/fee required | Ovid Technologies, Inc. | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=33316032.ui | |
| subscription/membership/fee required | Silverchair Information Systems | https://academic.oup.com/bib/article-lookup/doi/10.1093/bib/bbaa342 |