Cengiz, A. Tevfik, Mehmet Kıyan, M. Şahin Uğurel, Zeki Özyedek, and Çağatay Özdöl. 1992. “Routes of Contamination and Risk Groups in Hepatitis B Virus (HBV) Infections-I”. European Journal of Therapeutics 3 (2):300-307. https://doi.org/10.58600/eurjther.19920302-1477.