Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . There is no evidence of subdiaphragmatic free gas . Gastric bubble is seen in the left upper quadrant and is unremarkable . There is no pleural effusion , pulmonary edema , pneumothorax or focal consolidation concerning for pneumonia .
    OUTPUT:
    
No subdiaphragmatic free air . No acute cardiopulmonary process .