Screening for Down's syndrome / 
edited by J. G. Grudzinskas. 
 - 346 pages :  illustrations ;  24 cm. 
<br/><br/><label>ISBN: </label>0521452716 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Down's syndrome--Diagnosis<br/> Gonadotropins, Chodionic--Analysis<br/> Prenatal diagnosis<br/> Genetics screening