Rapid-onset dystonia parkinsonism appears to be a rare disorder, although its prevalence is unknown. It has been diagnosed in individuals and families from the United States, Europe, and Korea.
How many people are affected by rapid-onset dystonia parkinsonism ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by rapid-onset dystonia parkinsonism ? [/INST] \n Rapid-onset dystonia parkinsonism appears to be a rare disorder, although its prevalence is unknown. It has been diagnosed in individuals and families from the United States, Europe, and Korea.</s>