Kim, J.;                     Shin, M.-S.;                     Jang, A.Y.;                     Kim, S.;                     Heo, S.;                     Cha, E.;                     An, M.    
        Advance Directives and Factors Associated with the Completion in Patients with Heart Failure. Int. J. Environ. Res. Public Health 2021, 18, 1780.
    https://doi.org/10.3390/ijerph18041780
    AMA Style
    
                                Kim J,                                 Shin M-S,                                 Jang AY,                                 Kim S,                                 Heo S,                                 Cha E,                                 An M.        
                Advance Directives and Factors Associated with the Completion in Patients with Heart Failure. International Journal of Environmental Research and Public Health. 2021; 18(4):1780.
        https://doi.org/10.3390/ijerph18041780
    
    Chicago/Turabian Style
    
                                Kim, JinShil,                                 Mi-Seung Shin,                                 Albert Youngwoo Jang,                                 Shinmi Kim,                                 Seongkum Heo,                                 EunSeok Cha,                                 and Minjeong An.        
                2021. "Advance Directives and Factors Associated with the Completion in Patients with Heart Failure" International Journal of Environmental Research and Public Health 18, no. 4: 1780.
        https://doi.org/10.3390/ijerph18041780
    
    APA Style
    
                                Kim, J.,                                 Shin, M.-S.,                                 Jang, A. Y.,                                 Kim, S.,                                 Heo, S.,                                 Cha, E.,                                 & An, M.        
        
        (2021). Advance Directives and Factors Associated with the Completion in Patients with Heart Failure. International Journal of Environmental Research and Public Health, 18(4), 1780.
        https://doi.org/10.3390/ijerph18041780