Name Info Provider Link
Vaccines free resource MedlinePlus Health Information https://medlineplus.gov/vaccines.html
free resource NCI CPTAC Assay Portal https://assays.cancer.gov/CPTAC-1617
subscription/membership/fee required BioOne https://doi.org/10.1645/0022-3395(2002)088[0684:EOVWRF]2.0.CO;2
subscription/membership/fee required Silverchair Information Systems https://meridian.allenpress.com/journal-of-parasitology/article-lookup/doi/10.1645/0022-3395(2002)088[0684:EOVWRF]2.0.CO;2