Lee, J.K.;                     Song, S.H.;                     Ahn, B.;                     Yun, K.W.;                     Choi, E.H.    
        Etiology and Epidemiology of Croup before and throughout the COVID-19 Pandemic, 2018–2022, South Korea. Children 2022, 9, 1542.
    https://doi.org/10.3390/children9101542
    AMA Style
    
                                Lee JK,                                 Song SH,                                 Ahn B,                                 Yun KW,                                 Choi EH.        
                Etiology and Epidemiology of Croup before and throughout the COVID-19 Pandemic, 2018–2022, South Korea. Children. 2022; 9(10):1542.
        https://doi.org/10.3390/children9101542
    
    Chicago/Turabian Style
    
                                Lee, Joon Kee,                                 Seung Ha Song,                                 Bin Ahn,                                 Ki Wook Yun,                                 and Eun Hwa Choi.        
                2022. "Etiology and Epidemiology of Croup before and throughout the COVID-19 Pandemic, 2018–2022, South Korea" Children 9, no. 10: 1542.
        https://doi.org/10.3390/children9101542
    
    APA Style
    
                                Lee, J. K.,                                 Song, S. H.,                                 Ahn, B.,                                 Yun, K. W.,                                 & Choi, E. H.        
        
        (2022). Etiology and Epidemiology of Croup before and throughout the COVID-19 Pandemic, 2018–2022, South Korea. Children, 9(10), 1542.
        https://doi.org/10.3390/children9101542