Challenges Faced for Botulinum Toxin Injection in the Treatment of Hemifacial Spasm and Blepharospasm: Our Experience in Tribhuvan University Teaching Hospital during COVID-19 Pandemic. Annapurna J. Health Sci. [Internet]. 2023 Nov. 30 [cited 2026 Jul. 4];1(2):11-5. Available from: https://nepjol.info/index.php/ajhs/article/view/59913