[1] Fdn IRCCS Ist Nazl Tumori, Diagnost & Mol Res Unit, I-20133 Milan, Italy
[2] Int Soc Doctors Environm ISDE, I-52100 Arezzo, Italy
[3] Fdn IRCCS Ist Nazl Tumori, Environm Epidemiol Unit, I-20133 Milan, Italy
[4] Casa Cura San Rossore, Resp Pathophysiol, I-56122 Pisa, Italy
[5] Fdn IRCCS Ist Nazl Tumori, Resp Dis Unit, I-20133 Milan, Italy
[6] Imperial Coll, Natl Heart & Lung Inst, Airway Dis Sect, London, England
[7] Fdn IRCCS Ist Nazl Tumori, Canc Registry Unit, I-20133 Milan, Italy
[8] Fdn IRCCS Ist Nazl Tumori, Environm Epidemiol Unit, Via Venezian 1, I-20133 Milan, Italy