@article{paperid:1019740, author = {Fereidoni, Masoud and Mohammad Javan and Saeed Semnanian and Abolhasan Ahmadiani}, title = {Chronic forced swim stress inhibits ultra-low dose morphine-induced hyperalgesia in rats}, journal = {Behavioural Pharmacology}, year = {2007}, volume = {18}, number = {7}, month = {November}, issn = {0955-8810}, pages = {667--672}, numpages = {5}, keywords = {analgesia; chronic stress; hyperalgesia; rat; tolerance; ultra-low morphine}, }