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<http://schema.org/description>
"What is trigeminal neuralgia? Trigeminal neuralgia (TN) is a condition that causes pain in the face and head. The pain is usually on one side of the face. It is related to the trigeminal nerve, which runs from the brain to the side of the face."
<https://instituteforchronicpain.org/common-conditions/neuralgia/trigeminal>