3Weber B,Melchior W,Gehrke R,et al.Hepatitis B virus markers in anti-HBc only positive individuals.J Med Virol,2001,64(3):312-319.
4Greub G,Frei PC.Presence of low levels of anti-HBs antibody in so-called 'anti-HBc alone' subjects.Liver,2001,21(6):380-383.
5Sunbul M,Leblebicioglu H,Esen S,et al.Response to hepatitis B vaccine in HBsAg/anti-HBs negative and anti-HBc positive subjects.Scand J Infect Dis,2000,32(3):315-316.
