Zhang, J <br/><br/>
Relationship of maternal smoking during pregnancy to placenta previa.  [electronic resource] 

 -  American journal of preventive medicine   
 - 278-82 p.  digital 
<br/><br/> Publication Type: Journal Article; Review 
<br/><br/><label>ISSN: </label>0749-3797 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bias<br/>Female<br/>Humans<br/>Maternal-Fetal Exchange<br/>North Carolina<br/>Odds Ratio<br/>Placenta Previa--etiology<br/>Pregnancy<br/>Prevalence<br/>Risk Factors<br/>Smoking--adverse effects