The Tower of Babel.
Berkman
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EM
D001771:Blood Banks / Q000592:standards*; D001782:Blood Donors; D001804:Blood Transfusion, Autologous; D015483:HIV Antibodies / Q000032:analysis; D015497:HIV-1 / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D013588:Syphilis Serodiagnosis
D015483:HIV Antibodies; D006514:Hepatitis B Surface Antigens