Shabbir F, Nisar S, Ashraf N, Khan B, Hakim F, Khan H. Comparison of Sequential and Concomitant Therapy for Eradication of Helicobacter Pylori. PAFMJ [Internet]. 2022 Nov. 7 [cited 2024 Apr. 24];72(5):1787-90. Available from: https://pafmj.org/PAFMJ/article/view/7963