Piva, E.K., Gonçalves de Oliveira Toso, B.R., Rodrigues da Silva Carvalho, A., Silveira Viera, C. and Bittencourt Guimarães, A.T. 2017. Validation and categorization of the parental belief scale of pre-term newborn babies. Acta Colombiana de Psicología. 21, 1 (Dec. 2017), 139–148. DOI:https://doi.org/10.14718/ACP.2018.21.1.7.