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 Swan neck deformity:

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

"

Diagnosis of swan neck deformity is mainly clinical. MRI of the hand may suggest volar plate attenuation of PIP and extensor tendon damage for DIP[citation needed] Genetic screening tests such as for CMT disease may also be indicated.