Ashok, A. ., A. Kunoor, M. Rajeev, S. . Melepurakkal, Aravind Mohankumar Syamala, S. . Venugopal, Vishnu Gopalakrishnan, and Tajik Muhammed Shafi. “Knowledge, Practice, and Barriers of Optimal Mask Usage Among General Public – A Cross-Sectional Study from Kerala, South India”. Asian Journal of Medical Sciences, vol. 13, no. 12, Dec. 2022, pp. 11-16, doi:10.3126/ajms.v13i12.46262.