Orbitofrontal cortex involvement in chronic analgesic-overuse headache evolving from episodic migraine - Fumal, A; Laureys, S; Di Clemente, L; Boly, M; Bohotin, V; Vandenheede, M; Coppola, G; Salmon, E; Kupers, R; Schoenen, J (Brain, 2006)
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