SAYADINIA, Mehrdad et al. Synthesizing Evidence on Adverse Events of Perioperative Clonidine: An Umbrella Review. Galen Medical Journal, [S. l.], v. 15, p. e3537, 2026. DOI: 10.31661/gmj.v15i.3537. Disponível em: https://journals.salviapub.com/index.php/gmj/article/view/3537. Acesso em: 2 may. 2026.