Kovar, R <br/><br/>
Pregnancy and increased maternal age.  [electronic resource] 

 -  The Nebraska medical journal  Sep 1981 
 - 221 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0091-6730 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Down Syndrome--etiology<br/>Female<br/>Humans<br/>Maternal Age<br/>Pregnancy, High-Risk