Epidemiological and clinical profile of viral hepatitis B and C among adult patients attending Hepatitis clinic at Rwanda Military Referral and Teaching Hospital: a retrospective cross-sectional study

卢旺达军事转诊教学医院肝炎门诊成年患者乙型和丙型病毒性肝炎的流行病学和临床特征：一项回顾性横断面研究