It affects one in every 18,000-40,000 male births.
What number or numbers are missing in the sequence 48, XXYY?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What number or numbers are missing in the sequence 48, XXYY? [/INST] \n It affects one in every 18,000-40,000 male births.</s>