Fatma M. Shebl1,2,3, Samer S. El-Kamary1, Michelle Shardell1, Patricia Langenberg1, Laila S. Dorgham2, James H. Maguire1, Laurence S. Magder1
1Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, USA
2National Liver Institute, Shibin Elkom, Menoufia, Egypt
3Chronic Disease Epidemiology Division, Yale School of Public Health, 60 College St., PO Box 208034, New Haven, CT 06520-8034, USA