title: Prevalence of HB Ag and HB Ab in the Canadian blood-donor population.
mesh_terms: D000906:Antibodies / Q000032:analysis*; D001782:Blood Donors; D001803:Blood Transfusion / Q000592:standards; D002170:Canada; D002353:Carrier State; D006509:Hepatitis B / Q000517:prevention & control*; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D008403:Mass Screening
chemical_list: D000906:Antibodies; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens