Silveira, A., Castro, I., Machado, E., Pallazo, F., Sequeira, M. T., Ferraz, H., & GuimarĂ£es, M. I. (2024). Biosafety and perioral botulinum toxin application: research study. Scientific Letters, 1(Sup 1). https://doi.org/10.48797/sl.2024.170