Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Comparison is made with the next preceding similar study obtained two hours earlier during the same day . Chest findings are unaltered . In the interval the NG tube has been advanced and reaches now below the diaphragm including the lines and side port .
    OUTPUT:
    
Successful adjustment of line position .