1- Birjand University of Medical Sciences, Birjand, Iran 
 2- Birjand University of Medical Sciences, Birjand, Iran. , rezaghaderi@yahoo.com
                    
                    
                    Abstract:       (14299 Views)
                    
                    
                    This article has no abstract.
                    
                    
                    
                     
                    
                    
                    
                    Type of Study:  
Letter to Editor |
                    Subject: 
                    
Histology  Received: 2012/12/23 | Accepted: 2013/01/17 | ePublished: 2016/03/10