front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |review

Fuente: Doll and Peto. Mortality in relation to smoking: Twenty years’ observations on male British doctors. BMJ 1976;2:1525-36