Tobacco smoking in fifty-year-old men. I. Respiratory symptoms and ventilatory function tests.

@article{Wilhelmsen1966TobaccoSI,
  title={Tobacco smoking in fifty-year-old men. I. Respiratory symptoms and ventilatory function tests.},
  author={Lars Wilhelmsen and G{\"o}sta Tibblin},
  journal={Scandinavian journal of respiratory diseases},
  year={1966},
  volume={47 2},
  pages={
          121-30
        }
}