TY  - BOOK
AU  - Mahmoud Mohammed Yasin 
AU  - Hazem Elsayed Abouyosef , 
AU  - Mohammed Sharaf , 
AU  - Tarek Hussein Elshabony , 
TI  - Study of the activity of superoxide dismutase in cases of gastritis and peptic ulcer / 
PY  - 1997///
CY  - Cairo : 
PB  - Mahmoud Mohammed Yasin , 
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Internal Medicine
ER  -