Ventura, S J <br/><br/>
First births to older mothers, 1970-86.  [electronic resource] 

 -  American journal of public health  Dec 1989 
 - 1675-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0090-0036 
<br/><br/><label>Standard No.: </label>10.2105/ajph.79.12.1675  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Age Factors<br/>Education<br/>Female<br/>Humans<br/>Maternal Age<br/>Parity<br/>Pregnancy, High-Risk