Reliability and Validity of an Adapted and Translated Version of the Mullen Scales of Early Learning (AT-MSEL) in Rural Guatemala. - Colbert AM; Lamb MM; Asturias EJ; Muñoz FM; Bauer D; Arroyave P; Hernández S; Martínez MA; Paniagua-Avila A; Olson D; Calvimontes DM; Bolaños GA; et al. (Child: care, health and development, 2020)