1. Salomon LJ, Bernard JP, Nizard J, Ville Y. First-trimester screening for fetal triploidy at 11 to 14 weeks: a role for fetal biometry. Prenat Diagn 2005; 25(6): 479-483.
2. Daniel A, Wu Z, Bennetts B, Slater H, Osborn R, Jackson J, Pupko V, Nelson J, Watson G, Cooke-Yar borough C, Loo C. Karyotype, phenotype and parental origin in 19 cases of triploidy. Prenat Diagn 2001; 21(12): 1034-1048.
3. Crane JP, Beaver HA, Cheung SW. Antenatal ultrasound findings in fetal triploidy syndrome. J Ultrasound Med 1985; 4(10): 519-524.
4. Benn PA, Gainey A, Ingardia CJ, Rodis JF, Egan JFX. Second trimester maternal serum analytes in triploid pregnancies: correlation with phenotype and sex chromosome complement. Prenat Diagn 2001; 21(8): 680-686.
5. Gassner R, Metzenbauer M, Hafner E, Vallazza U, Philipp K. Triploidy in a twin pregnancy: small placenta volume as an early sonographical marker. Prenat Diagn 2003; 23(1): 16-20.
6. Breathnach FM, Malone FD. Screening for aneu ploidy in first and second trimesters: is there an optimal paradigm? Curr Opin Obstet Gynecol 2007; 19(2): 176-182.
7. Huang T, Alberman E, Wald N, Summers AM. Triploidy identified through second-trimester serum screening. Prenat Diagn 2005; 25(3):229-233.
8. Verma R, Babu A. Tissue culture techniques and chromosome preparation. In: Verma R, Babu A, Eds. Human Chromosomes: Principles and Techniques, 2nd ed. New York: McGraw-Hill Inc.1995; 6-71.
9. Jones KL. Chromosomal abnormality syndromes. In: Jones KL, Ed. Smith’s Recognizable Patterns of Human Malformation, 6th ed. Philadelphia:: Elsevier Saunders. 2006; 28-31.
10. McFadden DE, Hulait G, Lockitch G, Langlois S. Maternal serum screening in triploidy. Prenat Diagn 2002; 22(12): 1112-1114.
11. Perenc M, Dudarewicz L, Kaluzewski B. Utility of the triple test in the detection of abnormalities of the feto-placental unit. Med Sci Monit 2000; 6(5): 994-999.
12. Canick JA, Palomaki GE, Osathanondh R. Prenatal screening for trisomy 18 in the second trimester. Prenat Diagn 1990;10(8): 546-548.
13. Berkowitz RS, Bernstein MR, Laborde O, Gold stein DP. Subsequent pregnancy experience in patients with gestational trophoblastic disease. New England Tro phoblastic Disease Center, 1965-1992. J Repro Med 1994; 39(3): 228-232.
