Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from the same day , overall no substantial change of the right lung . Slight improvement in the left lung . ETT is 3 cm from the carina . The tip of the nasogastric tube in the stomach , partially beyond view of this chest radiograph . Mild pulmonary edema and moderate bilateral effusions unchanged . Persistent lower lobe opacities likely reflect atelectasis and effusions . No pneumothorax .
    OUTPUT:
    
Overall no substantial change of the right lung . Slight improvement in the left lung .