title: HBeAg negativity is not equal to the presence of pre core mutations in chronic hepatitis B patients.
authors: Seyed M
authors: SM
authors: Jazayeri
authors: Seyed M
authors: SM
authors: Alavian
mesh_terms: D005260:Female; D006515:Hepatitis B virus / Q000235:genetics*; D006801:Humans; D008297:Male