Wie viele Menschen sind von einem Rett-Syndrom betroffen? Gibt es bei Männern und Frauen die gleiche Prävalenz? Und in anderen Ländern?
Original
In occurs mainly in females. It's prevalence is 1 in 10,000. When it does occur in male, it is very likely they have an extra x chromosome. Most males die before birth, and those who survive, usually don't survive past 2 years.