Name Info Provider Link
free resource BioMed Central https://bmcemergmed.biomedcentral.com/articles/10.1186/s12873-020-00350-x
Blood Transfusion and Donation free resource MedlinePlus Health Information https://medlineplus.gov/bloodtransfusionanddonation.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32635889/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/32635889