title: High prevalence of antibody to hepatitis B surface antigen in sickle cell trait.
mesh_terms: D000293:Adolescent; D000328:Adult; D000755:Anemia, Sickle Cell / Q000276:immunology*; D000914:Antibodies, Viral; D006441:Hemoglobin A / Q000276:immunology; D006451:Hemoglobin, Sickle / Q000276:immunology; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D006801:Humans; D008297:Male; D008875:Middle Aged; D012805:Sickle Cell Trait / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D006451:Hemoglobin, Sickle; D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D006441:Hemoglobin A