Choi, Y.;                     Kim, J.S.;                     Kim, J.E.;                     Choi, H.;                     Lee, C.H.    
        Vaccination Prioritization Strategies for COVID-19 in Korea: A Mathematical Modeling Approach. Int. J. Environ. Res. Public Health 2021, 18, 4240.
    https://doi.org/10.3390/ijerph18084240
    AMA Style
    
                                Choi Y,                                 Kim JS,                                 Kim JE,                                 Choi H,                                 Lee CH.        
                Vaccination Prioritization Strategies for COVID-19 in Korea: A Mathematical Modeling Approach. International Journal of Environmental Research and Public Health. 2021; 18(8):4240.
        https://doi.org/10.3390/ijerph18084240
    
    Chicago/Turabian Style
    
                                Choi, Yongin,                                 James Slghee Kim,                                 Jung Eun Kim,                                 Heejin Choi,                                 and Chang Hyeong Lee.        
                2021. "Vaccination Prioritization Strategies for COVID-19 in Korea: A Mathematical Modeling Approach" International Journal of Environmental Research and Public Health 18, no. 8: 4240.
        https://doi.org/10.3390/ijerph18084240
    
    APA Style
    
                                Choi, Y.,                                 Kim, J. S.,                                 Kim, J. E.,                                 Choi, H.,                                 & Lee, C. H.        
        
        (2021). Vaccination Prioritization Strategies for COVID-19 in Korea: A Mathematical Modeling Approach. International Journal of Environmental Research and Public Health, 18(8), 4240.
        https://doi.org/10.3390/ijerph18084240