what are the symptoms of non small cell lung cancer?
['Fatigue.', 'Cough.', 'Shortness of breath.', 'Chest pain, if a tumor spreads to the lining of the lung or other parts of the body near the lungs.', 'Loss of appetite.', 'Coughing up phlegm or mucus.', 'Coughing up blood.', 'Unintentional weight loss.']