Humagain, Manoj. “Periodontal Practice, Aerosol Production, and COVID Transmission: A Challenge or An Opportunity?”. Journal of Nepalese Society of Periodontology and Oral Implantology 5, no. 1 (June 30, 2021): 1. Accessed November 21, 2024. https://nepjol.info./index.php/jnspoi/article/view/34234.