1. Orthopedic Trauma Clinic Service, Deocl�cio Marques Hospital, 59141‑085 Parnamirim, RN, Brazil
2. Department of Biomedical Sciences, University of Rio Grande do Norte State, 59607‑360 Mossor�, RN, Brazil
3. Orthopedic Trauma Clinic Service, Getulio Vargas Hospital, 50630‑060 Recife, PE, Brazil
4. Department of Pediatrics, University Hospital Onofre Lopes, Federal University of Rio Grande do Norte, 59012‑300 Natal, RN, Brazil
5. Department of Biochemisty, Federal University of Rio Grande do Norte, 59072‑970 Natal, RN, Brazil
6. Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, 59072‑970 Natal, RN, Brazil