title: Hepatitis-associated antigen in urban children.
mesh_terms: D000906:Antibodies; D002673:Child, Hospitalized; D002675:Child, Preschool; D003095:Collagen Diseases / Q000382:microbiology; D004314:Down Syndrome; D005260:Female; D006506:Hepatitis A / Q000209:etiology; D006509:Hepatitis B / Q000453:epidemiology*; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006507:Hepatovirus; D006801:Humans; D005779:Immunodiffusion; D007223:Infant; D008607:Intellectual Disability; D007674:Kidney Diseases / Q000382:microbiology; D008297:Male; D011233:Precipitin Tests; D019966:Substance-Related Disorders; D065227:Transfusion Reaction; D014505:Urban Population
chemical_list: D000906:Antibodies; D006511:Hepatitis B Antigens