[1] Univ Calif Los Angeles, Dept Integrat Biol & Physiol, Los Angeles, CA 90095 USA
[2] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, W Harry Feinstone Dept Mol Microbiol & Immunol, Baltimore, MD USA
[3] Univ Maryland, Sch Med, Pharmacol, Baltimore, MD USA
[4] Univ Maryland, Sch Med, Dept Pharmacol, Baltimore, MD USA
[5] Univ Maryland, Med Inst Neurosci Discovery, Sch Med, Baltimore, MD USA
[6] McGill Univ, Alan Edwards Ctr Res Pain, Dept Psychol, Pain Studies, Montreal, PQ, Canada
[7] McGill Univ, Alan Edwards Ctr Res Pain, Dept Anaesthesia, Pain Studies, Montreal, PQ, Canada
[8] McGill Univ, Fac Dent, Alan Edwards Ctr Res Pain, Montreal, PQ, Canada