Paroxysmal nocturnal hemoglobinuria is a rare disorder, estimated to affect between 1 and 5 per million people.
How many people are affected by paroxysmal nocturnal hemoglobinuria ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by paroxysmal nocturnal hemoglobinuria ? [/INST] \n Paroxysmal nocturnal hemoglobinuria is a rare disorder, estimated to affect between 1 and 5 per million people.</s>