Al Azhar University Hospital in Damietta, Damietta, Egypt
Abdulkarim Hasan, Cairo, Egypt
Al-Azher Univerity Hospitals (Al-Hussien and Bab El-Shaeria), Cairo, Egypt
Al-Azhar University, Cairo, Egypt
Faculty of Dentistry, Al-Azhar University., Cairo, Egypt
Al Azhar University, Cairo, Egypt
Internal medicine and hepatology outpatient clinic at Ain Shams University Hospital., Cairo, Egypt
Al-Azhar University (Cairo), Cairo, Egypt
Al-Galaa Teaching Hospital, Cairo, Egypt
Urology Department, Al-Azhar University Hospital, Cairo, Egypt