Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The heart is normal in size and cardiomediastinal contour is unremarkable . Lungs are well expanded . No chf , focal infiltrate , pleural effusion or pneumothorax detected . Bones are within normal limits .
    OUTPUT:
    
Chest xray examination within normal limits .