Seroprevalence of hepatitis B virus surface antigen (HBsAg) in Egypt (2000–2022): a systematic review with meta-analysis oleh Ahmed Azzam, Heba Khaled, Ola A. Elbohy, Shueb Abdirahman Mohamed, Sana Mostafa Hussein Mohamed, Ahmed H. Abdelkader, Ahmad Ashraf Ezzat, Amora Omar Ibrahim Elmowafy, Ola Ali El-Emam, Mona Awadalla, Neveen Refaey, Shimaa Mohamed Abdou Rizk