Association between helicobacter pylori infection and gallstone disease among patients undergoing cholecystectomy: A Cross-Sectional study from Ibrahim Saeed hospital, Sudan. - Mahmoud, Mohamed; Elsadeg, Sara; Ali, Mogahid Mahmoud Mohammed; Elnibras, Mohammed; Gaafar, Isam; Suliman, Gawahir; Abdelwahid, Awadalla (Perinatal Journal, 2026)