The "toll" of opioid-induced glial activation: improving the clinical efficacy of opioids by targeting glia.
Watkins LR, Hutchinson MR, Rice KC, Maier SF. The "toll" of opioid-induced glial activation: improving the clinical efficacy of opioids by targeting glia. Trends Pharmacol Sci. 2009 Nov; 30(11):581-91.