Research from the National Institute of Respiratory Diseases (INER) informs that besides smoking, there are other factors associated to the development of lung cancer such as the smoke from burning lumber and coal, as well as pollutant particles.
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...
Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...