J. R. Ralte, L. Hrahsel, L. Sailo, G. S. Anusuya, L. Sailo, and L. Ruata, “A cross sectional study on tobacco usage among COVID 19 Positive patients admitted in a tertiary care centre in Mizoram India ”, Asian J Med Sci, vol. 14, no. 1, pp. 10–14, Jan. 2023.