Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if you experience a medical emergency , stop using the fitbit service and consult with a medical professional . 

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