LBSL is a rare condition. Its exact prevalence is not known.
How many people are affected by leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation ? [/INST] \n LBSL is a rare condition. Its exact prevalence is not known.</s>