title: Prevalence of hepatitis B surface antigen (HBsAg) in children with sickle cell anaemia.
authors.forename: I A
authors.initials: IA
authors.lastname: Angyo
authors.forename: H O
authors.initials: HO
authors.lastname: Okuonghae
authors.forename: R
authors.initials: R
authors.lastname: Szlachetka
authors.forename: A M
authors.initials: AM
authors.lastname: Yakuku
mesh_terms: D017677:Age Distribution; D000755:Anemia, Sickle Cell / Q000453:epidemiology* / Q000276:immunology*; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D015897:Comorbidity; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006509:Hepatitis B / Q000175:diagnosis / Q000453:epidemiology* / Q000276:immunology*; D006514:Hepatitis B Surface Antigens / Q000097:blood*; D006801:Humans; D007223:Infant; D008297:Male; D008403:Mass Screening; D009549:Nigeria / Q000453:epidemiology; D012016:Reference Values; D012307:Risk Factors; D016036:Seroepidemiologic Studies; D017678:Sex Distribution