Original Research
        
        
            
        
        
        
Frequency of Helicobacter pylori blood-group antigen-binding adhesion 2 and sialic acid binding adhesion genes among dyspeptic patients in Tabriz, Iran
        
        
        Leila Yousefi, Reza Ghotaslou * , Mohammad Taghi Akhi, Mohammad Asgharzadeh, Mohammad Reza Nahaei, Mandana Rafeey