Determination of hepatitis B genotypes in patients with chronic hepatitis B virus infection in Turkey - ÖZDEMİR, Filiz Türe; DUMAN, Deniz; ERTEM, Deniz; AVŞAR, Erol; EREN, Fatih; ÖZDOĞAN, Osman; KALAYCI, Cem; ASLAN, Nuray; BOZDAĞI, A.Mithat; TÖZÜN, Nurdan (Turkish Journal of Gastroenterology, 2005)