Bismuth quadruple therapy versus concomitant therapy for the first-line treatment of helicobacter pylori infection: systematic review and meta-analysis
E. Dajti,A. Cominardi,L. Frazzoni,L. Fuccio,L. H. Eusebi,A. Vestito,A. Lisotti,G. Galloro,M. Romano,F. Bazzoli,R. M. Zagari
