Riaz Hussain Khokhar1, Safdar Ali Perveiz Tunio2, Shahabuddin Rind3, Ghulam Mujtaba Shah4, Ashok Kumar Lohano5, Ghulam Mustafa Jamali6, “ENDOSCOPIC DIAGNOSIS OF DUODENAL ULCER FREQUENCY IN CHRONIC LIVER DISEASE, A TERTIARY CARE ASSESMENT. ”, JPUMHS, vol. 10, no. 3, Sep. 2020.