Long-term exposure to low levels of air pollutants. Effects on pulmonary function in the beagle.

@article{Vaughan1969LongtermET,
  title={Long-term exposure to low levels of air pollutants. Effects on pulmonary function in the beagle.},
  author={Ted R Vaughan and L F Jennelle and Tracy R. Lewis},
  journal={Archives of environmental health},
  year={1969},
  volume={19 1},
  pages={45-50}
}