Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Low lung volumes again noted particularly in the frontal exam . The lungs remain clear . There is no effusion or pneumothorax . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected . Chronic potentially posttraumatic changes seen at the distal right clavicle .
    OUTPUT:
    
No acute cardiopulmonary process .