Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . Cardiomediastinal and hilar contours are within normal limits . There is no evidence of pulmonary edema , pleural effusion , or pneumothorax . No evidence of free air is seen beneath the diaphragms . Hardware in the neck is unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . No air is identified under the right hemidiaphragm .