Heyman, B. Henriksen, M. <br/><br/>
Risk, age and pregnancy: a cast study of prenatal genetic screening and testing. 

 - Hampshire :  Palgrave,  2001 
<br/><br/> Pregnancy  Genetics  Down's syndrome  Screening 
<br/><br/><label>ISBN: </label>033373940X 
<br/><br/><label>Dewey Class. No.: </label>618.2075 HEY