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=31837026.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31837026/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/31837026
subscription/membership/fee required Wiley https://doi.org/10.1111/trf.15626