Heesen, M <br/><br/>
Analgesia in Obstetrics.  [electronic resource] 

 -  Geburtshilfe und Frauenheilkunde  Jul 2012 
 - 596-601 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0016-5751 
<br/><br/><label>Standard No.: </label>10.1055/s-0031-1298444  doi