Pitt-Hopkins syndrome is thought to be a very rare condition. Approximately 500 affected individuals have been reported worldwide.
How many people are affected by Pitt-Hopkins 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 Pitt-Hopkins syndrome ?<|eot_id|><|start_header_id|>assistant<|end_header_id|> Pitt-Hopkins syndrome is thought to be a very rare condition. Approximately 500 affected individuals have been reported worldwide.<|eot_id|>