F. ÖZGENÇ, Çiğdem ÖMÜR ECEVİT, G. ERDEMİR, R. SERTÖZ, and R. V. YAĞCI, “Prevelance of hepatitis D co-enfection in children with hepatitis B infection: Cross-sectional analyses from Western Turkey”, Turkish Journal of Gastroenterology, vol. 24, no. 4, pp. 345–348, Jan. 2013.