Boruchovitch, E., Felix-Sousa, I. C., & Schall, V. T. (1991). The concept of disease and of the preservation of health in a sample population of teachers and pupils of a school course for 7-14 year olds . Revista De Saúde Pública, 25(6), 418-425. https://doi.org/10.1590/S0034-89101991000600002