References
- Irgens LM. The Medical Birth Registry of Norway. Epidemiological research and surveillance throughout 30 years. Acta Obstet Gynecol Scand. 2000; 79(6)435–9
- Sivertsen Å, Wilcox A, Johnson G, Vindenes H, Åbyholm F, Lie R. Prevalence of major anatomic variations in oral clefts. Plast Reconstruct Surg. 2007 (in press).
- Schwartz S, Kapala JT, Rajchgot H, Roberts GL. Accurate and systematic numerical recording system for the identification of various types of lip and maxillary clefts (RPL system). Cleft Palate Craniofac J. 1993; 30(3)330–2
- Kernahan DA. The striped Y – a symbolic classification for cleft lip and palate. Plast Reconstruct Surg. 1971; 47(5)469–70
- Kernahan DA, Stark RB. A new classification for cleft lip and cleft palate. Plast Reconstruct Surg. 1958; 22(5)435–41
- Abyholm FE. Submucous cleft palate. Scand J Plast Reconstruct Surg. 1976; 10(3)209–12
- Sylvester-Jensen HC. Registration and treatment of patients with submucous cleft palate. The 9th International Congress on Cleft Palate and Related Craniofacial Anomalies, Gøteborg; 2001.
- Lie RT, Heuch I, Irgens LM. Maximum likelihood estimation of the proportion of congenital malformations using double registration systems. Biometrics. 1994; 50(2)433–44
- Harville EW, Wilcox AJ, Lie RT, Vindenes H, Abyholm F. Cleft lip and palate versus cleft lip only: are they distinct defects?. Am J Epidemiol. 2005; 162(5)448–53
- Cohen MM. Syndromes with orofacial clefting. Cleft lip and palate: from origin to treatment, D Wyszynski. Oxford University Press, New York, NY 2003
- Habel A, Elhadi N, Sommerlad B, Powell J. Delayed detection of cleft palate: an audit of newborn examination. Arch Dis Childhood. 2006; 91(3)238–40
- Christensen K, Holm NV, Olsen J, Fogh-Andersen P. [Study of the Danish Malformation Registry for the incidence of cleft lip and palate during 1983–1987]. Ugeskrift Laeger 1992; 154(11)715–9