title: [Follow-up of anti-HBs levels in vaccines with different initial values of anti-HBs after three doses of HB vaccine: the second report].
mesh_terms: D005500:Follow-Up Studies; D006510:Hepatitis B Antibodies / Q000032:analysis*; D006514:Hepatitis B Surface Antigens / Q000276:immunology*; D017325:Hepatitis B Vaccines; D006801:Humans; D013997:Time Factors; D014611:Vaccination; D014761:Viral Hepatitis Vaccines / Q000008:administration & dosage*
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens; D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines