Johanson, R <br/><br/>
Soft versus rigid vacuum extractor cups for assisted vaginal delivery.  [electronic resource] 

 -  The Cochrane database of systematic reviews  2000 
 - CD000446 p.  digital 
<br/><br/> Publication Type: Journal Article; Review; Systematic Review 
<br/><br/><label>ISSN: </label>1469-493X 
<br/><br/><label>Standard No.: </label>10.1002/14651858.CD000446  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Female<br/>Humans<br/>Pregnancy<br/>Vacuum Extraction, Obstetrical--instrumentation