Çelik, Hasan Tolga, et al. “Recovery of Cyanosis After Esophageal Intubation in a Neonate With Tracheal Agenesis: A Case Report”. The Turkish Journal of Pediatrics, vol. 64, no. 4, Aug. 2022, pp. 775-80, https://doi.org/10.24953/turkjped.2018.1637.