4

Letter. The accuracy of assigned risks in maternal serum screening

Year:
1998
Language:
english
File:
PDF, 45 KB
english, 1998
26

Maternal serum hCG levels in triploidy: Variability and need to consider molar tissue

Year:
1992
Language:
english
File:
PDF, 169 KB
english, 1992
32

Contingent screening for Down syndrome

Year:
2008
Language:
english
File:
PDF, 31 KB
english, 2008