Effectiveness and safety of ustekinumab for moderate to severely active Crohn’s disease: results from an early access program in Brazil - Chebli, Julio Maria Fonseca; Parra, Rogério Serafim; Flores, Cristina; Moraes, Antonio Carlos; Nones, Rodrigo Bremer; Gomes, Tarcia Nogueira Ferreira; Perdomo, Ana Maria Bravo; Scapini, Gustavo; Zaltman, Cyrla (Journal of Clinical Medicine, 2022)