Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . There is no focal opacity convincing for pneumonia . Cardiomediastinal and hilar contours are within normal limits . There is no evidence of pulmonary edema , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process .