Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild bibasilar atelectasis . There is a new small left pleural effusion . No right pleural effusion . Heart size , mediastinal contour , and hila are unremarkable . No pneumothorax .
    OUTPUT:
    
1 . Bibasilar atelectasis . 2 . Small left pleural effusion .