The precise incidence of this condition is unknown. It is estimated to affect 1 to 3 per million people worldwide.
How many people are affected by pantothenate kinase-associated neurodegeneration ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by pantothenate kinase-associated neurodegeneration ? [/INST] \n The precise incidence of this condition is unknown. It is estimated to affect 1 to 3 per million people worldwide.</s>