Name Info Provider Link
Blood Transfusion and Donation free resource MedlinePlus Health Information https://medlineplus.gov/bloodtransfusionanddonation.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=21545595.ui
subscription/membership/fee required Wiley https://doi.org/10.1111/j.1537-2995.2010.03022.x