JAMSHIDIAN-TEHRANI, M.; Z. MEHRJARDI, H.; KASAEE, A.; YADEGARI, S. Ptosis Following Botulinum Toxin Injection in Hemifacial Spasm: Not always a straightforward diagnosis. Current Journal of Neurology, v. 18, n. 4, p. 184-186, 10 nov. 2019.