Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal silhouette is unremarkable . There is no pneumothorax or pleural effusion . Visualized osseous structures are unremarkable . Sternotomy wires and CABG clips are noted . No subdiaphragmatic free air is noted .
    OUTPUT:
    
No acute cardiopulmonary process . No free air seen under the diaphragms .