Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low and there is right greater than left bibasilar atelectasis . There is no pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal contours are normal . No rib fracture is identified , although the lower ribs are not well assessed and CT or dedicated rib series is more sensitive . The vertebral body heights are maintained . Alignment of the thoracic spine is normal .
    OUTPUT:
    
1 . Right greater than left bibasilar atelectasis . 2 . No displaced rib fracture seen , although the lower ribs are not well assessed and CT or dedicated rib series is more sensitive