1. Ultrasound markers;Snijders,1994
2. Fetal exomphalos and chromosomal defects: relationship to maternal age and gestation;Snijders;Ultrasound Obstet Gynecol,1995
3. Fetal omphalocele and gastroschisis: A review of 24 cases;Bair;AJR,1986
4. The prenatal ultrasonographic features of omphalocele: A study of 10 patients;Brown;J Can Assoc Radiol,1985
5. Gastroschisis and exomphalos: Precise diagnosis by mid-pregnancy ultrasound;Redford;Br J Obstet Gynaecol,1985