Role of Masson Trichrome Stain in Characterizing Stromal Types in Pancreatic Ductal Adenocarcinoma (PDAC). - Badr, Nahla M.; Aiad, Hayam A.; Mahmoud, Shereen F.; El-Refaie, Ahmed; Ibrahim, Shymaa H.; Elkholy, Shimaa S. (Egyptian Journal of Hospital Medicine, 2026)