title: Hepatitis B virus mutants and efficacy of vaccination.
authors.forename: R H
authors.initials: RH
authors.lastname: Purcell
mesh_terms: D000818:Animals; D002648:Child; D006509:Hepatitis B / Q000276:immunology*; D017325:Hepatitis B Vaccines / Q000235:genetics*; D006515:Hepatitis B virus / Q000235:genetics*; D006801:Humans; D008297:Male; D009154:Mutation / Q000235:genetics*; D002679:Pan troglodytes
chemical_list: D017325:Hepatitis B Vaccines