Department of Neurology;
School of Medicine;
University of Sao Paulo;
Sao Paulo;
Brazil;
Department of Anatomy;
Institute of Biomedical Science;
University of Sao Paulo;
Sao Paulo;
Brazil;
Department of Orthopedic and Traumatology;
School of Medicine;
University of Sao Paulo;
Sao Paulo;
Brazil;
Department of Physiology and Biophysics;
Institute of Biomedical Science;
University of Sao Paulo;
Sao Paulo;
Brazil;
Department of Surgery;
School of Medicine;
University of Sao Paulo;
Sao Paulo;
Brazil;
Department of Neurosurgery;
Eberhard-Karls University;
Tuebingen;
Germany;
Department of Psychiatry;
School of Medicine;
University of Sao Paulo;
Sao Paulo;
Brazil;
spinal cord injuries; chronic pain; neural stem cells; cell transplantation; neuronal differentiation; GABAergic neuron; serotoninergic neuron; enkephalinergic neuron;