Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , there is no relevant change . Normal position of the diaphragms , no pleural effusions . No pulmonary edema . No pneumonia . No other parenchymal changes . Normal size of the cardiac silhouette . Normal hilar and mediastinal contours . No pneumothorax . No rib abnormalities .
    OUTPUT:
    
No changes as compared to ___ . Normal chest radiograph . No radiographic explanation for the clinical presentation of chest pain .