Quante persone sono colpite dalla Sindrome di Rett? Ha la stessa prevalenza negli uomini e nelle donne? E nei differenti paesi?
Originale
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.