P. Roxo Júnior, V. P. L. Ferriani, J. E. Teixeira, and J. E. Barbosa, “ Complement levels in Brazilian children during and after meningococcal meningitis ”, Clinics, vol. 60, no. 2, pp. 127–130, Apr. 2005, doi: 10.1590/S1807-59322005000200008.