title: Testing for Australian antigen.
mesh_terms: D001782:Blood Donors; D001803:Blood Transfusion; D006400:Hematocrit; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D009519:New York City
chemical_list: D006511:Hepatitis B Antigens