Butorphanol pre-treatment prevents myoclonus induced by etomidate. Swiss Medical Weekly, [S. l.], v. 144, n. 4142, p. w14042, 2014. DOI: 10.4414/smw.2014.14042. Disponível em: https://www.smw.ch/index.php/smw/article/view/3261. Acesso em: 20 oct. 2025.