title: Hepatitis B surveillance in Korean adoptees.
mesh_terms: D000300:Adoption; D002648:Child; D002675:Child, Preschool; D004641:Emigration and Immigration; D006509:Hepatitis B / Q000208:ethnology*; D006801:Humans; D007223:Infant; D007723:Korea / Q000208:ethnology; D008297:Male; D008396:Maryland