Barkai, G <br/><br/>
Effect of gravidity on maternal serum markers for Down's syndrome.  [electronic resource] 

 -  Prenatal diagnosis  Apr 1996 
 - 319-22 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0197-3851 
<br/><br/><label>Standard No.: </label>10.1002/(SICI)1097-0223(199604)16:4<319::AID-PD859>3.0.CO;2-U  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Analysis of Variance<br/>Biomarkers--blood<br/>Chorionic Gonadotropin--blood<br/>Down Syndrome--blood<br/>Estriol--blood<br/>Female<br/>Fetal Death<br/>Gestational Age<br/>Humans<br/>Mass Screening<br/>Maternal Age<br/>Middle Aged<br/>Parity<br/>Predictive Value of Tests<br/>Pregnancy<br/>Prenatal Diagnosis--methods<br/>Prospective Studies<br/>alpha-Fetoproteins--analysis