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Dai N, Ullah S, Zhang J, Wan X, Zhu S, Liu P, Guo C, Cao X.Dai N, et al. Among authors: ullah s.Surg Endosc. 2024 Jun;38(6):3329-3336. doi: 10.1007/s00464-024-10859-y. Epub 2024 Apr 30.Surg Endosc. 2024.PMID: 38689159
Kong LJ, Liu D, Zhang JY, Ullah S, Zhao L, Li D, Yang H, Liu BR.Kong LJ, et al. Among authors: ullah s.Endoscopy. 2022 Apr;54(4):396-400. doi: 10.1055/a-1490-0434. Epub 2021 Jun 17.Endoscopy. 2022.PMID: 33893629Free article.
Yang B, Kong L, Ullah S, Zhao L, Liu D, Li D, Shi X, Jia X, Dalal P, Liu B.Yang B, et al. Among authors: ullah s.Endoscopy. 2022 Aug;54(8):747-754. doi: 10.1055/a-1737-6381. Epub 2022 Mar 7.Endoscopy. 2022.PMID: 35021234Free PMC article.Review.