World health Organization <br/><br/>
WHO guidelines on the pharmacological treatment of persisting pain in children with medical illnesses 

 - 1st 
 - Switzerland  World Health Organisation  2012 
 - 166p p. 
<br/><br/><label>ISBN: </label>978-92-4-154812-0 
<br/><br/><label>Subjects--Index Terms: </label>Pain-drug therapy