Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Takayasu's arteritis:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

It is now known that the blood vessel malformations that occur in the retina are an angiogenic response to the arterial narrowings in the neck and that the absence of pulses noted in some people occurs because of narrowings of the blood vessels to the arms. The eye findings described by Takayasu are rarely seen in patients from North America and British Columbia.[citation needed]