Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is appropriately positioned , ending 3 .9 cm above the level of the carina . An enteric catheter passes below the level of the diaphragm , ending within the stomach . There is minimal left lower lung atelectasis . The lungs are otherwise clear . The heart size is normal . The mediastinal contours are normal . There are no definite pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
1 . Appropriately positioned endotracheal tube . 2 . No acute cardiac or pulmonary process . --