[1] Al Azhar Univ, Dept Hepatogastroenterol & Infect Dis, Cairo, Egypt
[2] Minia Univ, Dept Endem Dis, Al Minya, Egypt
[3] Helwan Univ, Dept Endem Med, Cairo, Egypt
[4] Al Azhar Univ, Dept Hepatogastroenterol & Infect Dis, Dumyat, Egypt
[5] Tanta Univ, Dept Trop Med, Tanta, Egypt
[6] Assiut Univ, Dept Chest, Assiut, Egypt
[7] Assiut Univ, Dept Trop Med & Gastroenterol, Assiut, Egypt
[8] Benha Univ, Dept Hepatol Gastroenterol & Infect Dis, Banha, Egypt
[9] Ain Shams Univ, Dept Trop Med, Cairo, Egypt
[10] Al Azhar Univ, Dept Internal Med, Cairo, Egypt
[11] Al Azhar Univ, Dept Community & Ind Med, Dumyat, Egypt
[12] Mansoura Univ, Dept Chest Med, Mansoura, Egypt
[13] Cairo Univ, Dept Publ Hlth & Community Med, Cairo, Egypt
[14] Minist Hlth & Populat, Cairo, Egypt
[15] Minia Univ, Dept Radiol, Al Minya, Egypt
[16] Cairo Univ, Fac Med, Dept Pulm Med, Cairo, Egypt
[17] Tanta Univ, Dept Emergency Med & Traumatol, Tanta, Egypt
[18] Port Said Univ, Dept Trop Med, Port Said, Egypt
[19] Al Azhar Univ, Dept Chest Dis, Dumyat, Egypt
[20] Natl Hepatol & Trop Med Res Inst NHTMRI, Dept Hepatol Gastroenterol & Infect Dis, Cairo, Egypt