Data from the Department of medicine, Faculty of medicine, siriraj hospital, Mahidol University. Stating that those who smoke, there will be a risk of lung cancer than those who do not smoke 20 to 30 times.
With data from the Department of Medicine Faculty of Medicine University indicates that people who smoke have a higher risk of lung cancer than non-smokers 20 to 30 times, depending on the amount and duration of smoking.
The data from the Department of medicine, Faculty of medicine Siriraj Hospital, stating that those who smoke have the risk of lung cancer than those who don't smoke 20 to 30 imaginable.