LÓPEZ-RATÓN, M.; RODRÍGUEZ-ÁLVAREZ, M. X.; CADARSO-SUÁREZ, C.; GUDE-SAMPEDRO, F. OptimalCutpoints: An R Package for Selecting Optimal Cutpoints in Diagnostic Tests. Journal of Statistical Software, [S. l.], v. 61, n. 8, p. 1–36, 2014. DOI: 10.18637/jss.v061.i08. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v061i08. Acesso em: 24 may. 2022.