1. Department of Physics, FFCLRP University of São Paulo Ribeirão Preto São Paulo Brazil
2. Department of Medical Imaging, Hematology and Clinical Oncology, Ribeirão Preto Medical School University of São Paulo Ribeirão Preto Brazil
3. J Philip Kistler Stroke Research Center, Department of Neurology Massachusetts General Hospital, Harvard Medical School Boston Massachusetts USA
4. Department of Neurosciences and Behavioral Science Ribeirão Preto Medical School, University of Sao Paulo Ribeirão Preto São Paulo Brazil