Use of near fatal asthma for investigating asthma deaths.

@article{Beasley1993UseON,
  title={Use of near fatal asthma for investigating asthma deaths.},
  author={Richard Beasley and N. R. L. Pearce and Julian Crane},
  journal={Thorax},
  year={1993},
  volume={48 11},
  pages={1093-4}
}