HAIDER, I.; HUSSAIN, D.; MUHAMMMAD, A. SPECTRUM OF HELICOBACTER PYLORI IN HUNDRED PATIENTS PRESENTING WITH PERFORATED DUODENAL ULCER. Journal of Postgraduate Medical Institute, [S. l.], v. 25, n. 4, 2011. Disponível em: https://jpmi.org.pk/index.php/jpmi/article/view/1144. Acesso em: 22 nov. 2024.