The effect of tens on pain and fear in children with abdominal surgery: a randomized controlled trial protocol. International Journal of Innovative Research and Reviews, [S. l.], v. 7, n. 2, p. 59–64, 2023. Disponível em: http://www.injirr.com/index.php/injirr/article/view/204.. Acesso em: 20 jul. 2024.