title: Antibody response to half dose hepatitis B vaccine.
authors.forename: S H
authors.initials: SH
authors.lastname: Chan
authors.forename: M I
authors.initials: MI
authors.lastname: Tobias
mesh_terms: D000328:Adult; D006509:Hepatitis B / Q000276:immunology; D006510:Hepatitis B Antibodies / Q000032:analysis*; D017325:Hepatitis B Vaccines; D006801:Humans; D008875:Middle Aged; D014761:Viral Hepatitis Vaccines / Q000008:administration & dosage*
chemical_list: D006510:Hepatitis B Antibodies; D017325:Hepatitis B Vaccines; D014761:Viral Hepatitis Vaccines