Carrots, green vegetables and lung cancer: a case-control study.

@article{Pisani1986CarrotsGV,
  title={Carrots, green vegetables and lung cancer: a case-control study.},
  author={Paola Pisani and Franco Berrino and Maurizio Macaluso and Ugo Pastorino and Paolo Crosignani and Alberto Baldasseroni},
  journal={International journal of epidemiology},
  year={1986},
  volume={15 4},
  pages={
          463-8
        }
}
A total of 417 lung cancer cases and 849 controls were interviewed on their life-long tobacco usage and their current intake of four food items rich in retinol or carotene. The study was a hospital-based case control where 'cases' were lung cancer patients diagnosed during the period 1979/80 at seven hospitals in the Lombardy region (90% pathologically confirmed) and controls were patients admitted to the same hospitals for causes unrelated to tobacco smoking (epithelial cancers being excluded… 

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