Preparation of Conjugates of Cytotoxic Lupane Triterpenes with Biotin
        Preparation of Conjugates of Cytotoxic Lupane Triterpenes with Biotin.        
                  Bioconjugate Chemistry.                
                  2015,
                
                              26(12),
                  
                              2563-70,
                          
                  ISSN: 1043-1802,
                
                
                              PMID: 26537839,                          
                
                          
        
      
    