KHAN K.S. <br/><br/>
AN INTERNATIONAL JOU.OF OBST. AND GYNAEC. 

 -  BJOG  2016 
 - 1419-2233  9-12 
 -  123 .
<br/><br/><label>ISSN: </label>14700328 
<br/><br/><label>Dewey Class. No.: </label>618