Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well expanded . Trachea is midline . Heart is normal in size and configuration . Cardiomediastinal contours are within normal limits . Lungs are clear with no evidence of focal infiltrates . No pleural effusions and no pneumothorax . Bony structures are intact .
    OUTPUT:
    
Normal radiographic study of the chest .