Williams syndrome affects an estimated 1 in 7,500 to 10,000 people.
How many people are affected by Williams syndrome ?
<|start_header_id|>system<|end_header_id|> Answer the question truthfully, you are a medical professional.<|eot_id|><|start_header_id|>user<|end_header_id|> This is the question: How many people are affected by Williams syndrome ?<|eot_id|><|start_header_id|>assistant<|end_header_id|> Williams syndrome affects an estimated 1 in 7,500 to 10,000 people.<|eot_id|>