http://psychonaut.i2p/wiki/Substance_P
C., Mease, P. J., Russell, I. J., Dworkin, R. H., Corbin, A. E., Young, J. P., LaMoreaux, L. K., Martin, S. A., Sharma, U. (April 2005). "Pregabalin for the treatment of fibromyalgia syndrome: Results of a randomized, double-blind, placebo-controlled trial" .