Screening for hepatitis B virus infection in Egyptian blood donors negative for hepatitis B surface antigen.
El-Sherif
Assem M
AM
Department of Internal Medicine, Al-Azhar Faculty of Medicine, Al-Azhar University, Nassr City, Cairo, Egypt, assem_elsherif@yahoo.com.
Abou-Shady
Mohamed A
MA
Al-Hiatmy
Mohsen A
MA
Al-Bahrawy
Ashraf M
AM
Motawea
Elham A
EA