@article{forones_tanaka_falcão_1997,  title={CEA as a prognostic index in colorectal cancer},  volume={115},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31801997000600006},  DOI={10.1590/S1516-31801997000600006},  number={6},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Forones, Nora Manoukian and Tanaka, Marcelo and Falcão, Jeane Brito},  year={1997},  month={Nov},  pages={1589–1592} }