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Comparison between ultrasonography and capnography for ascertaining placement of endotracheal tube in patients undergoing general anesthesia – A prospective observational study. Asian J Med Sci [Internet]. 2024 Jul. 1 [cited 2026 Jul. 12];15(7):20-6. Available from: https://nepjol.info/index.php/AJMS/article/view/63102