What is lung cancer - incidence, signs, symptoms, causation, prognosis and treatment

INTRODUCTION Lung cancer is the most tragic cancer because in most cases, it could prevent 87% of cases are caused by smoking. Lung cancer has long been the most common cause cancers in men and since 1987 also become the most common cause of death cancer in women. It is the second most common cancer in most Western countries, although the cancer lung is less common in developing countries, the