title: [Observation on immunological parameters and HBsAg-carrying status of newborn infants infected by hepatitis B virus from their mother during perinatal period].
mesh_terms: D000328:Adult; D005260:Female; D006509:Hepatitis B / Q000151:congenital* / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D007109:Immunity; D007231:Infant, Newborn; D008297:Male; D008431:Maternal-Fetal Exchange; D011247:Pregnancy
chemical_list: D006514:Hepatitis B Surface Antigens