ROCHA, Bruno  e  NUNES, Cristina. Psychometric characteristics of the Portuguese version of the Preschool Pediatric Symptom Checklist for children aged 18 to 60 months. Psicologia [online]. 2021, vol.35, n.2, pp.109-118.  Epub 31-Dez-2021. ISSN 0874-2049.