W. Al-Hamoudi - King Saud University
F. Abaalkhail - King Faisal Specialist Hospital & Research Centre
A. Bendahmash - King Saud University
N. Allam - Hepatology department, National Liver Institute, Menoufeya University, Menoufeya, Egypt
N. Almasri - King Faisal Specialist Hospital & Research Centre
H. Al-bahili - King Faisal Specialist Hospital & Research Centre
M. Al-Sebayel - King Faisal Specialist Hospital & Research Centre
D. Broering - King Faisal Specialist Hospital & Research Centre
H. Elsiesy - King Faisal Specialist Hospital & Research Centre