Naik, B. N. ., Singh, C. ., Biswas, B. ., Pandey, S. ., Nirala, S. K. ., & Chaudhary, N. . (2021). Perceived Risk of Tobacco Use in COVID-19 Disease Causation and Severity among Healthcare Professionals: A Pan India Online Survey. National Journal of Community Medicine, 12(06), 140–147. https://doi.org/10.5455/njcm.20210607111817