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