@inproceedings{inproceedingsb5e12a3a, title = {Effect of morphine treatments on opioid receptor genes expression in periaqueductal gray, striatum and hypothalamus of the nulliparous female rats}, author = {Teodorov, Elizabeth and Modena, C. C and Sukikara, Marcia Harumi and FelĂ­cio, Luciano Freitas}, year = {2006}, booktitle = {Forum of European Neuroscience} }