S Jabbo, N. (2013). Risk factors in perforated peptic ulcer disease: Incidence and relation to morbidity and mortality. , 12(1), 35-44.
N S Jabbo. "Risk factors in perforated peptic ulcer disease: Incidence and relation to morbidity and mortality". , 12, 1, 2013, 35-44.
S Jabbo, N. (2013). 'Risk factors in perforated peptic ulcer disease: Incidence and relation to morbidity and mortality', , 12(1), pp. 35-44.
S Jabbo, N. Risk factors in perforated peptic ulcer disease: Incidence and relation to morbidity and mortality. , 2013; 12(1): 35-44.