,  Faride Nam Avar Jahromi 
  
,  Elnaz Vaziee 
  
,  Hossein Dehghani 
  
,  Amir Mahmoodzade 
  
,   Gholamhossein Tamaddon * 
  
                
                        Investigation of Paternal RhD Zygosity by Two Molecular Methods among Blood Donors in Kurdistan Province, Iran