1. Department of Morphology, Institute of Biological Sciences; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
2. Department of Biochemistry and Immunology, Institute of Biological Sciences; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
3. Department of General Pathology, Institute of Biological Sciences; Universidade Federal de Minas Gerais; Belo Horizonte Brazil