1. Department of Genetics, Ribeir�o Preto School of Medicine, University of S�o Paulo, Ribeir�o Preto, SP 14040‑901, Brazil
2. Regional Blood Center, Ribeir�o Preto School of Medicine, University of S�o Paulo, Ribeir�o Preto, SP 14040‑901, Brazil
3. Department of Biomechanics, Medicine and Rehabilitation of The Locomotor System, Ribeir�o Preto School of Medicine, University of S�o Paulo, Ribeir�o Preto, SP 14040‑901, Brazil
4. Department of Pediatrics, Ribeir�o Preto School of Medicine, University of S�o Paulo, Ribeir�o Preto, SP 14040‑901, Brazil
5. Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeir�o Preto, University of S�o Paulo, Ribeir�o Preto, SP 14040‑901, Brazil