Mobaraki, Noshin <br/><br/>
A Randomized Controlled Trial Comparing Use of Enthonox With Pethidine for Pain Relief in Primigravid Women During the Active Phase of Labor.  [electronic resource] 

 -  Anesthesiology and pain medicine  Aug 2016 
 - e37420 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2228-7523 
<br/><br/><label>Standard No.: </label>10.5812/aapm.37420  doi