HGPPS has been reported in several dozen families worldwide.
How many people are affected by horizontal gaze palsy with progressive scoliosis ?
<|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 horizontal gaze palsy with progressive scoliosis ?<|eot_id|><|start_header_id|>assistant<|end_header_id|> HGPPS has been reported in several dozen families worldwide.<|eot_id|>