1. Laboratory of Neuromodulation of Experimental Pain, Department of Anatomy; University of São Paulo; São Paulo Brazil
2. Laboratory of Ultrastructure of Cells and Tissues, Department of Anatomy; University of São Paulo; São Paulo Brazil
3. Laboratory of Cellular and Tissue Biology, Faculty of Applied Sciences; University of Campinas; Limeira Brazil
4. Univeristy City of São Paulo, Medical School; São Paulo Brazil