V. M. Avanzi, U. J. V. Fonzar, E. S. Silva, J. J. V. Teixeira, and D. A. Bertolini, “Risk areas for hepatitis A, B and C in the municipality of Maringá, Paraná State, Brazil 2007-2010”, Geospat Health, vol. 13, no. 1, May 2018.