Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are clear and well expanded . There is no pleural effusion or pneumothorax . The heart is normal in contour and size . The hilar and mediastinal contours are normal . The bones and soft tissues are unremarkable .
    OUTPUT:
    
Normal chest radiograph .