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. 2023;1(2):11-15. Accessed July 4, 2026. https://nepjol.info/index.php/ajhs/article/view/59913