and ( c ) although there is a wealth of data that indicate the efficacy of the retinoids in the prevention of a variety of cancers in experimental animals , including mammary carcinogenesis by dmba ( 3,5 ) , the present results and those reported by others ( 2 ) are not in agreement with a universal effect of retinoic acid in the prevention of carcinogenesis .
C0035339
retinoids
C0040845
retinoic acid