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