title: Timing of booster doses of hepatitis B vaccine.
mesh_terms: D000328:Adult; D002648:Child; D006207:Half-Life; D006509:Hepatitis B / Q000517:prevention & control*; D006510:Hepatitis B Antibodies / Q000032:analysis; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary
chemical_list: D006510:Hepatitis B Antibodies