Epidemiology
Females are affected four times as frequently as males. The condition is particularly common in Japan where it occurs in 1 in 1,000 live births compared with 1 in 100,000 live births in Western Europe.
Create an account to add page annotations
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.