Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiograph demonstrates unremarkable cardiomediastinal and hilar contours . Minimal bibasilar atelectasis is noted , right greater than left . No opacification concerning for pneumonia noted . No pleural effusion or pneumothorax evident . No osseous abnormalities identified .
    OUTPUT:
    
Normal chest radiograph . No pneumonia .