Eijk, A.A. van der

patient level hbv dna levels hepatitis hbv dna serum virus hbeag therapy hepatitis b saliva transmission treatment hbv dna level hepatitis b virus study baseline lamivudine urine hbv dna measurements response infection chapter assay measurement log hbv dna 105 copies /ml tenofovir carrier decrease health care workers health hepatitis b patients decline value niester detection sample variant surgeon model man ra hepatology efficacy group hbv patients combination hbv dna testing replication week 12 testing schalm niesters hg 4 weeks lamivudine therapy van der eijk non-response ymdd variants adefovir hbv infection netherland blood range phase status precore mutant hbv dna decrease mutation decay month management effect needle hbeag status genotype fluid serum hbv dna adefovir dipivoxil osterhaus ad