Children and adolescents' emotional problems during the COVID-19 pandemic in Brazil - Zuccolo, Pedro Fonseca; Casella, Caio Borba; Fatori, Daniel; Shephard, Elizabeth; Sugaya, Luisa; Gurgel, Wagner; Farhat, Luis Carlos; Argeu, Adriana; Teixeira, Monike; Otoch, Luara Nagata; Polanczyk, Guilherme Vanoni (European child & adolescent psychiatry, 2023)