Influence of esterification and modification of A-ring in a group of lupane acids on their cytotoxicity
        Influence of esterification and modification of A-ring in a group of lupane acids on their cytotoxicity.        
                  Bioorganic & Medicinal Chemistry.                
                  2005,
                
                              13(19),
                  
                              5527-5535,
                          
                  ISSN: 0968-0896,
                
                
                              PMID: 16087342,                          
                
        
        
      
    