
Non-small cell lung cancer survivors who never smoked or who are former smokers at the time of diagnosis have a lower risk of developing secondary primary lung cancers compared to those who are current smokers, suggesting that increased tobacco exposure is associated with a higher risk of SPLC, according to new research.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nd7Sjeg3Kvk/140916112919.htm