Triple screening test

Palomaki GE, Bradley LA, & McDowell GA: Technical standards and guidelines: prenatal screening for Down syndrome. Genet Med 2005; 7(5):344-354.

Akbas SH, Ozben T, Alper O, et al: Maternal serum screening for Down's syndrome, open neural tube defects and trisomy 18. Clin Chem Lab Med 2001; 39(6):487-490.

Benn PA, Clive JM, & Collins R: Medians for second-trimester maternal serum alpha-fetoprotein, human chorionic gonadotropin, and unconjugated estriol; differences between races or ethnic groups. Clin Chem 1997; 43(2):333-337.

Driscoll DA & Nakamura Y: Second trimester maternal serum screening for fetal open neural tube defects and aneuploidy. Genet Med 2004; 6(6):540-541.

Haddow JE, Palomaki GE, Knight GJ, et al: Prenatal screening for Down's syndrome with use of maternal serum markers. N Engl J Med 1992; 327(9):588-593.