1. Avni F et al (2002) Perinatal imaging: from ultrasound to MR imaging. Springer-Verlag, Berlin
2. Barkovich AJ (2000) Pediatric neuroimaging, 3rd edn. Lippincott Williams & Wilkins, Philadelphia, pp 289–291
3. Callen PW (1994) Ultrasonography in obstetrics and gynecology, 3rd edn. W.B. Saunders, Philadelphia, pp 373–376
4. Diamond DA et al (1999) Perinatal urology. In: Martin Barrett T (ed) Pediatric nephrology, 4th ed, vol 56. Lippincott Williams & Wilkins, Philadelphia, pp 897–912
5. Goldstein RB (2003) The thorax. In: Nyberg DA, McGahan JP, Pretorius DH, Pilu G (eds) Diagnostic imaging of fetal anomalies. Lippincott Williams & Wilkins, Philadelphia, pp 381–420