TY - RPRT TI - Morphine-induced decrease in mechanical allodynia is mediated by central, but not peripheral, opioid receptors in rats with inflammation. AU - Shao Li AU - Zhi-Qi Zhao PY - 2003 DO - 10.1016/j.ejphar.2003.09.032 UR - https://pubmed.ncbi.nlm.nih.gov/14642787/ ID - 14642787 ER -