Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate marginally low lung volumes and a heart that is top normal in size . The lungs are clear without focal consolidation . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of pneumonia . The heart is top - normal in size . A preliminary read was provided by Dr . ___ to Dr . ___ at 144 on ___ .