Document Type : Original full papers (regular papers)
Authors
1 Tropical medicine faculty of medicine
2 Department of tropical medicine ,Faculty of Medicine ,Fayoum University
3 Department of tropical medicine ,Faculty of Medicine ,Fayoum University.
4 Department of Tropical Medicine , Faculty of Medicine ,Beni Suef University
5 Department of public health,Faculty of Medicine ,Fayoum University
6 Department of Gastroenterology,Hepatology and Endemic Medicine,Faculty of Medicine,Minia University.
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