Positive sputum cytology and negative chest roentgenograms. A surgeon's dilemma.

@article{Bell1970PositiveSC,
  title={Positive sputum cytology and negative chest roentgenograms. A surgeon's dilemma.},
  author={Julius W. Bell},
  journal={The Annals of thoracic surgery},
  year={1970},
  volume={9 2},
  pages={
          149-57
        }
}
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