Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . There is minimal left basilar linear atelectasis . The lungs are otherwise clear . The heart size is normal . The mediastinal contours are normal . There are no pleural effusions . No pneumothorax is seen . Mild degenerative changes are noted along the lower thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary process .