title: Role of hepatitis B virus in acquired immunodeficiency syndrome.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000209:etiology* / Q000276:immunology; D000293:Adolescent; D000328:Adult; D000914:Antibodies, Viral / Q000032:analysis; D006509:Hepatitis B / Q000453:epidemiology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006515:Hepatitis B virus / Q000472:pathogenicity*; D006716:Homosexuality; D006801:Humans; D008297:Male; D008875:Middle Aged; D011863:Radioimmunoassay; D019966:Substance-Related Disorders / Q000453:epidemiology; D014481:United States
chemical_list: D000914:Antibodies, Viral; D006514:Hepatitis B Surface Antigens