Low back pain in adolescents and association with sociodemographic factors, electronic devices, physical activity and mental health Thiago Paulo Frascareli Bento; Guilherme Porfirio Cornelio; Priscila de Oliveira Perrucini; Sandra Fiorelli Almeida Penteado Simeão; Marta Helena Souza de Conti; Alberto de Vitta;

Pediatric kidney transplantation: outcomes with under and over 6-year-old donors Simone Lysakowski; Roberta Weisheimer Rohde; Santo Pascual Vitola; Fabian Silva Pires; Vandrea Carla de Souza; Pedro Enrico Ventura; Roger Kist; Clotilde Druck Garcia;

Development of a prognostic model for pediatric acute liver failure in a Brazilian center José Colleti Junior; Ana Cristina Aoun Tannuri; Uenis Tannuri; Artur Figueiredo Delgado; Werther Brunow de Carvalho;