Arvanil-induced inhibition of spasticity and persistent pain: evidence for therapeutic sites of action different from the vanilloid VR1 receptor and cannabinoid CB(1)/CB(2) recepto... by Brooks, J, Pryce, G, Bisogno, T, Jaggar, S, Hankey, D, Brown, P, Bridges, D, Ledent, C, Bifulco, M, Rice, A, Di Marzo, V, Baker, D