Lung cancer is caused by nurture of airway obstruction, and clinical symptoms leading to chronic preventative pulmonic diseases (COPD) as well as to recurrent respiratory package infections ( Klech H, Kummer F., Smoking causes chronic obstructive lung diseases and increased infections of the respiratory parcel of land, Wiener Medizinische Wochenschrift, Journal Code: XOU, 1994; [144 (22-23): 535-40]). The death rate of lung cancer has increase since 1991-1995 up to about 64%. Lung cancer is rocky to detect at an early gift and it is a...If you want to earn a full essay, order it on our website: OrderEssay.net
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