Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well - aerated lungs which are clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Normal chest radiograph . A preliminary read was provided via telephone by Dr . ___ to ___ at the office of Dr . ___ at ___ on ___ .