Risk of TB infection and smoking: IFN-γ concentration increases with the cigarettes' number in smokers
Maria N. Altet-Gomez, Jose Dominguez, Maria Louisa de Souza, Maria Angeles Jimenez, Celia Milá, Jordi Solsona, Irene Latorre, Angels Orcau, Joan Cayla
European Respiratory Journal Sep 2013, 42 (Suppl 57) P500;