Changing relative frequency of cancers of the colon and rectum in the United States.

@article{Axtell1966ChangingRF,
  title={Changing relative frequency of cancers of the colon and rectum in the United States.},
  author={L M Axtell and Leonard Chiazze},
  journal={Cancer},
  year={1966},
  volume={19 6},
  pages={750-4}
}