Bravo, S. A. G., Sanchez, A. A. C., Sulvaran, M. O., Caos, I. C., Alonso, E. C., Ochoa, S. S. V., Chavez, G. A., & Jaimes , M. A. P. (2026). A biliary dilemma resolved by endoscopy: Lemmel syndrome as a cause of non-lithiasic acute obstructive cholangitis . International Surgery Journal, 13(4), 650–652. https://doi.org/10.18203/2349-2902.isj20260854