References
- Chervenak F A., Isaacson G, Blakemore K J., et al. Fetal cystic hygroma. Cause and natural history. N Engl J Med 1983; 309: 822–25
- Frigoletto F D., Birnholz J C., Driscoll S G., Finberg H J. Ultrasound diagnosis of cystic hygroma. Am J Obstet Gynecol 1980; 136: 962–64