Prevalence of smoking and frequency of visits to primary health care clinics.

@article{AlQahtani2005PrevalenceOS,
  title={Prevalence of smoking and frequency of visits to primary health care clinics.},
  author={Dhafer Ali Al-Qahtani and Osman M Abdalla and Mohammed L Imtiaz},
  journal={Saudi medical journal},
  year={2005},
  volume={26 4},
  pages={687-9}
}

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