[Letter: Considerations against premature use of the CEA test in general practice].

@article{Haex1974LetterCA,
  title={[Letter: Considerations against premature use of the CEA test in general practice].},
  author={A. J. Ch. Haex and Albert Zwaveling},
  journal={Nederlands tijdschrift voor geneeskunde},
  year={1974},
  volume={118 50},
  pages={1917}
}