title: Transmission of hepatitis B in a classroom setting.
mesh_terms: D002648:Child; D005260:Female; D006509:Hepatitis B / Q000635:transmission*; D006510:Hepatitis B Antibodies / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D011863:Radioimmunoassay; D012574:Schools
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens