Reference Terms
from Wikipedia, the free encyclopedia

Lung cancer

Lung cancer is a malignant tumour of the lungs.

Most commonly it is bronchogenic carcinoma (about 90%).

Lung cancer is the most lethal malignant tumour worldwide, causing up to 3 million deaths annually.

Note:   The above text is excerpted from the Wikipedia article "Lung cancer", which has been released under the GNU Free Documentation License.
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December 2, 2015

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updated 12:56 pm ET