Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Cardiomediastinal silhouette and hilar contours are normal . Lungs are clear . There is no pleural effusion or pneumothorax . Multiple surgical clips project over the expected location of the gastroesophageal junction .
    OUTPUT:
    
Normal chest radiograph ; specifically no evidence of pneumonia .