It is estimated that 500 to 1,000 people worldwide have chorea-acanthocytosis.
How many people are affected by chorea-acanthocytosis ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by chorea-acanthocytosis ? [/INST] \n It is estimated that 500 to 1,000 people worldwide have chorea-acanthocytosis.</s>