Cascara sagrada References
    
        
        
            
        
            Borkje B, Pedersen R, Lund GM, et al. Effectiveness and acceptability of three bowel cleansing regimens. Scand J Gastroenterol 1991;26(2):162-166. 
  Borrelli F, Mereto E, Capasso F, Orsi P, Set al. Effect of bisacodyl and cascara on growth of... 
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