Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if any symptoms persist longer than 2-3 days after removing the device , consult your doctor . 

```
. OPTIONS: ['Limitation of liability' 'Content removal' 'Arbitration' 'None'
 'Choice of law' 'Unilateral change' 'Jurisdiction' 'Contract by using'
 'Unilateral termination'].