1. Cleft lip and palate;Worley;Clin Perinatol,2018
2. Ayanga G. The Improvement of Surgical Technique for the Congenital Cleft of the Palate. Doctoral Dissertation, Mongolian National University of Medical Science; 2012.
3. Enkhtur Sh, Bayalag M, Gantuya T, Nomindelger T, Orkhontuul P. “Epidemiological Study of Maternal and Child Morbidity and Mortality and Congenital Malformations in Mongolia-V”. Report of Study. Ulaanbaatar Mongolia: National Center for Maternal and Child Health; 2019. p. 127-47.
4. Optimal timing of cleft palate closure;Rohrich;Plast Reconstr Surg,2000
5. Primary veloplasty: long-term results without maxillary deformity.a twenty-five year report;Schweckendiek;Cleft Palate J,1978