Özdemir, N., Ersu, R., Akalın, F., Karadag, B., Kut, A., Karakoç, F., Elçioğlu, N., & Dağlı, E. (2006). Tracheobronchial calcification associated with Keutel syndrome. The Turkish Journal of Pediatrics, 48(4), 357-361. https://doi.org/10.24953/turkjpediatr.2006.2660