Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a right subclavian line terminating in the right atrium . Cardiac size is normal . The lungs are clear . There is no pneumothorax , mediastinal widening , or pleural effusion .
    OUTPUT:
    
Right subclavian line terminating in the right atrium . No evidence of pneumothorax . No evidence of pneumonia .