Blood banking services.
D001771:Blood Banks; D001782:Blood Donors; D001789:Blood Group Antigens; D001803:Blood Transfusion; D006509:Hepatitis B / Q000175:diagnosis / Q000209:etiology; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D007603:Jurisprudence; D009938:Organizations; D012067:Religion; D014481:United States
D001789:Blood Group Antigens; D006511:Hepatitis B Antigens