Familial paroxysmal nonkinesigenic dyskinesia is a very rare disorder. Its prevalence is estimated to be 1 in 5 million people.
How many people are affected by familial paroxysmal nonkinesigenic dyskinesia ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by familial paroxysmal nonkinesigenic dyskinesia ? [/INST] \n Familial paroxysmal nonkinesigenic dyskinesia is a very rare disorder. Its prevalence is estimated to be 1 in 5 million people.</s>