Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal lateral views of the chest demonstrate moderate cardiomegaly . Lung volumes are slightly decreased . However there is improved pulmonary edema and better overall aeration in the lungs . Mild interstitial edema is persistent . A small right pleural effusion is present . Subsegmental atelectasis is present in the lung bases .
    OUTPUT:
    
1 . Improving but persistent mild interstitial pulmonary edema . 2 . Improved pulmonary aeration . Small right pleural effusion .