1. Graduate Program in Computer Science, Federal University of Maranhão, São Luís 65080-805, Brazil
2. University Hospital of the Federal University of Maranhão, São Luís 65020-070, Brazil
3. Graduate Program in Biotechnology, Federal University of Parnaíba Delta, Parnaíba 64202-020, Brazil
4. Campus Araioses, Federal Institute of Maranhão, Araioses 65570-000, Brazil