title: HBsAg detection by the reverse passive hemagglutination technique.
mesh_terms: D006386:Hemagglutination Tests; D006509:Hepatitis B / Q000175:diagnosis*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008403:Mass Screening; D012383:Romania
chemical_list: D006514:Hepatitis B Surface Antigens