Botulinum toxin-A in the treatment of upper facial wrinkles: Efficacy comparison of different formulations. Annals of Medical Research, [S. l.], v. 30, n. 10, p. 1347–1352, 2023. Disponível em: http://www.annalsmedres.org/index.php/aomr/article/view/4555. Acesso em: 27 apr. 2025.