Suarez-Villadat, B.;                     Villagra, A.;                     Veiga, O.L.;                     Cabanas-Sanchez, V.;                     Izquierdo-Gomez, R.;                     on behalf of the UP&DOWN Study Group.    
        Prospective Associations of Physical Activity and Health-Related Physical Fitness in Adolescents with Down Syndrome: The UP&DOWN Longitudinal Study. Int. J. Environ. Res. Public Health 2021, 18, 5521.
    https://doi.org/10.3390/ijerph18115521
    AMA Style
    
                                Suarez-Villadat B,                                 Villagra A,                                 Veiga OL,                                 Cabanas-Sanchez V,                                 Izquierdo-Gomez R,                                 on behalf of the UP&DOWN Study Group.        
                Prospective Associations of Physical Activity and Health-Related Physical Fitness in Adolescents with Down Syndrome: The UP&DOWN Longitudinal Study. International Journal of Environmental Research and Public Health. 2021; 18(11):5521.
        https://doi.org/10.3390/ijerph18115521
    
    Chicago/Turabian Style
    
                                Suarez-Villadat, Borja,                                 Ariel Villagra,                                 Oscar L. Veiga,                                 Veronica Cabanas-Sanchez,                                 Rocio Izquierdo-Gomez,                                 and on behalf of the UP&DOWN Study Group.        
                2021. "Prospective Associations of Physical Activity and Health-Related Physical Fitness in Adolescents with Down Syndrome: The UP&DOWN Longitudinal Study" International Journal of Environmental Research and Public Health 18, no. 11: 5521.
        https://doi.org/10.3390/ijerph18115521
    
    APA Style
    
                                Suarez-Villadat, B.,                                 Villagra, A.,                                 Veiga, O. L.,                                 Cabanas-Sanchez, V.,                                 Izquierdo-Gomez, R.,                                 & on behalf of the UP&DOWN Study Group.        
        
        (2021). Prospective Associations of Physical Activity and Health-Related Physical Fitness in Adolescents with Down Syndrome: The UP&DOWN Longitudinal Study. International Journal of Environmental Research and Public Health, 18(11), 5521.
        https://doi.org/10.3390/ijerph18115521