1. Department of Structural and Functional Biology; Institute of Biology, UNICAMP; CP 6109 Campinas São Paulo 13084-864 Brazil
2. Special Institute of Health Sciences, Medicine Course, Federal University of Goiás; Jataí Goiás 75804-020
3. Department of Biology, Laboratory of Microscopy and Microanalysis; IBILCE, University of Estadual Paulista-UNESP; São José Do Rio Preto São Paulo 15054-000 Brazil
4. Department of Morphology; Federal University of Goiás; Goiânia Goiás 74001-970 Brazil