Brachytherapy with 125I seeds for the treatment of tumor
 
                 
                
                    
                                        
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Abstract
    The 125I is available for brachytherapy with its special biological and physical characters. At present, 125I-brachytherapy seeds have been widely used for interstitial implants in several tumor species abroad, especially the prostate eancer. But there are also some problems to be resolved in the treatment.
 
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