Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . An NG tube is seen with the tip and side port beyond the gastroesophageal junction . No subdiaphragmatic free air is identified .
    OUTPUT:
    
Appropriate position the NG tube . No evidence of subdiaphragmatic free air .