Liao, S.;                     Qi, L.;                     Xiong, J.;                     Yan, J.;                     Wang, R.    
        Intergenerational Ties in Context: Association between Caring for Grandchildren and Cognitive Function in Middle-Aged and Older Chinese. Int. J. Environ. Res. Public Health 2021, 18, 21.
    https://doi.org/10.3390/ijerph18010021
    AMA Style
    
                                Liao S,                                 Qi L,                                 Xiong J,                                 Yan J,                                 Wang R.        
                Intergenerational Ties in Context: Association between Caring for Grandchildren and Cognitive Function in Middle-Aged and Older Chinese. International Journal of Environmental Research and Public Health. 2021; 18(1):21.
        https://doi.org/10.3390/ijerph18010021
    
    Chicago/Turabian Style
    
                                Liao, Shiming,                                 Ling Qi,                                 Jie Xiong,                                 Jie Yan,                                 and Ruoxi Wang.        
                2021. "Intergenerational Ties in Context: Association between Caring for Grandchildren and Cognitive Function in Middle-Aged and Older Chinese" International Journal of Environmental Research and Public Health 18, no. 1: 21.
        https://doi.org/10.3390/ijerph18010021
    
    APA Style
    
                                Liao, S.,                                 Qi, L.,                                 Xiong, J.,                                 Yan, J.,                                 & Wang, R.        
        
        (2021). Intergenerational Ties in Context: Association between Caring for Grandchildren and Cognitive Function in Middle-Aged and Older Chinese. International Journal of Environmental Research and Public Health, 18(1), 21.
        https://doi.org/10.3390/ijerph18010021