Morphine: axon regeneration, neuroprotection, neurotoxicity, tolerance, and neuropathic pain.
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
    Berrios I, Castro C, Kuffler DP. Morphine: axon regeneration, neuroprotection, neurotoxicity, tolerance, and neuropathic pain. P R Health Sci J. 2008 Jun; 27(2):119-28.