1. Chen CP, Lin SP, Su YN et-al. A cloverleaf skull associated with Crouzon syndrome. Arch. Dis. Child. Fetal Neonatal Ed. 2006;91 (2): F98.
2. Entezami M, Albig M, Knoll U et-al. Ultrasound Diagnosis of Fetal Anomalies. Thieme. (2003) ISBN:1588902129.
3. Lowe LH, Booth TN, Joglar JM et-al. Midface anomalies in children. Radiographics. 20 (4): 907-22.
4. Altintas AG, Gül aksoy FG, Altintas CS et-al. Evaluation of findings in Crouzon's syndrome. Orbit. 1999;18 (4): 247-259. -
5. Leo MV, Suslak L, Ganesh VL et-al. Crouzon syndrome: prenatal ultrasound diagnosis by binocular diameters. Obstet Gynecol. 1991;78 (5 Pt 2): 906-8. -