[1
]
Gastroenterology and Endemic Medicine Department, Theodore Research Institute, Cairo,
Egypt.
[2
]
Gastroenterology and Endemic Medicine Department, Minia University, Minia, Egypt.
[3
]
Internal Medicine Department, Assuit University, Assuit, Egypt.
[4
]
Gastroenterology and Endemic Medicine Department, Ain Shams University, Cairo, Egypt.
[5
]
Rheumatology Department, Cairo University, Cairo, Egypt.