Moura LA de, Oliveira ACD de, Pereira G de A, Pereira LV. Postoperative pain in children: a gender approach. Rev. Esc. Enferm. USP [Internet]. 2011 Aug. 1 [cited 2024 May 27];45(4):833-8. Available from: https://www.revistas.usp.br/reeusp/article/view/40772