Nurses' perspectives on acquiring play-based competence through an online course: a focus group study in Brazil - Maia, Edmara Bazoni Soares; La Banca, Rebecca Ortiz; Nascimento, Lucila Castanheira; Schultz, Lidiane Ferreira; Furtado, Maria Cândida de Carvalho; Sulino, Mariane Caetano; Lima, Regina Aparecida Garcia de (Journal of Pediatric Nursing, 2021)