Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two frontal views of the chest demonstrate the lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . There is no evidence of subdiaphragmatic free air . No pleural effusion , pulmonary edema or pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of subdiaphragmatic free air .