Channawar KS, Harsha KS, Kiranmayee P. Feasibility of three window point of care ultrasound in endotracheal tube positioning in the level III pediatric intensive care unit. Int J Contemp Pediatr [Internet]. 2024 Oct. 24 [cited 2025 Nov. 6];11(11):1540-4. Available from: https://www.ijpediatrics.com/index.php/ijcp/article/view/6352