Martins, A.M.E. de B.L., Silveira, M.F., Freitas, C.V. de, Eleutério, N.B., Oliveira, P.H.A. and Ferreira, R.C. 2016. Challenges of a calibration process for an epidemiological study involving quantitative and ordinal categorical variables: one example. Arquivos em Odontologia. 47, 4 (May 2016). DOI:https://doi.org/10.7308/aodontol/2012.48.1.03.