NAEEM M, AHMAD S, ULLAH H, MUJAHID ., ASLAM A, ALI L, MASOOD A. PREVALENCE OF H. PYLORI INFECTION IN PATIENTS PRESENTING WITH PERFORATED DUODENAL ULCER. Biol Clin Sci Res J [Internet]. 2023Dec.31 [cited 2024May12];2023(1):642. Available from: https://bcsrj.com/ojs/index.php/bcsrj/article/view/642