Sonek, Jiri <br/><br/>
Frontomaxillary facial angles in screening for trisomy 21 at 14-23 weeks' gestation.  [electronic resource] 

 -  American journal of obstetrics and gynecology  Aug 2007 
 - 160.e1-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1097-6868 
<br/><br/><label>Standard No.: </label>10.1016/j.ajog.2007.03.059  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Down Syndrome--diagnosis<br/>Face--anatomy & histology<br/>Female<br/>Gestational Age<br/>Humans<br/>Maxilla--anatomy & histology<br/>Middle Aged<br/>Pregnancy<br/>Pregnancy Trimester, Second<br/>Retrospective Studies<br/>Ultrasonography, Prenatal