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 Obstructive sleep apnea:

"

RFA is usually performed in an outpatient setting, using either local anesthetics or conscious sedation anesthesia, the procedure itself typically lasting under 3 minutes. The targeted tissue, such as tongue or palate, is usually approached through the mouth without the need for incisions, although occasionally the target is approached through the neck using assisted imaging.[7] If the tongue is being targeted, this can be done from either dorsal or ventral side. Complications include ulceration, infection, nerve weakness or numbness and swelling. These complications occur in less than 1% of procedures.[1]