Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen . Bilateral first rib fractures are better seen on subsequent CT from ___ .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Bilateral first rib fractures , better seen on subsequent CT from ___ .