Nagaraj, N.; Sehra, R. N.; Berwal, P.; Choudhary, S.; Lal, D.; Kadela, R.; Raj, R.; Patel, P. K. A Clinical Study of Foreign Bodies in Air Passages. Indian J Child Health 2022, 4 (2), 151-154. https://doi.org/10.32677/IJCH.2017.v04.i02.010.