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Retrospective Cohort Study
Deloshaan Subhaharan, Pradeep Kakkadasam Ramaswamy, Laura Willmann, Hadi Moattar, Maneesha Bhullar, Naveed Ishaq, Alexander Dorrington, Dheeraj Shukla, Carolyn McIvor, John Edwards, Waled Mohsen 
World J Gastroenterol 29(16):2469-2478. Published online Apr 28, 2023. doi: 10.3748/wjg.v29.i16.2469
Retrospective Study
Observational Study