randomized controlled multicenter clinical study
      
                          
                                                            
                                                
 
 randomized controlled multicenter clinical study
 随机对照多中心临床研究
 以上为机器翻译结果,长、整句建议使用 人工翻译 。
  
 
 
                        
    
    
                
            
                                     
                            
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Methods: a multicenter, randomized, double blind, and placebo controlled clinical study was performed.
                    					 
                                        
                    方法本次为一中心,随机,双盲,安慰剂对照临床观察。
                                        
                                                            
                                                    youdao
                                            
                 
                                       
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