What are the common symptoms of lung cancer?

What are the common symptoms of lung cancer? What are the common symptoms of lung cancer under the protection of the question? The answer is a difficult question because it often does not show symptoms of lung cancer. For a quarter of people, according to the US monitoring of disease in the United States, there is no symptoms, even if cancer has in its advanced stages. In other people, the symptoms of lung cancer that may indicate the presence of lung cancer the following: