tamoxifen
Although an elevated occurrence of endometrial cancer is found in a small       proportion of breast cancer patients treated with tamoxifen, there is conflicting       evidence on whether or not low levels of DNA adducts are formed in humans.
Although an elevated occurrence of endometrial cancer is found in a small       proportion of  @OBJECT$  patients  @PREDICAT$  with  @SUBJECT$ , there is conflicting       evidence on whether or not low levels of DNA adducts are formed in humans.