Lung cancer is a type of cancer that starts in the lungs, the two organs located in the chest that are responsible for breathing. It is the leading cause of cancer deaths worldwide, accounting for about 1.8 million deaths every year.
Lung cancer is a type of cancer that starts in the lungs, the two organs located in the chest that are responsible for breathing. It is the leading cause of cancer deaths worldwide, accounting for about 1.8 million deaths every year.