Li, L.H.;                     Lee, J.C.-Y.;                     Leung, H.H.;                     Lam, W.C.;                     Fu, Z.;                     Lo, A.C.Y.    
        Lutein Supplementation for Eye Diseases. Nutrients 2020, 12, 1721.
    https://doi.org/10.3390/nu12061721
    AMA Style
    
                                Li LH,                                 Lee JC-Y,                                 Leung HH,                                 Lam WC,                                 Fu Z,                                 Lo ACY.        
                Lutein Supplementation for Eye Diseases. Nutrients. 2020; 12(6):1721.
        https://doi.org/10.3390/nu12061721
    
    Chicago/Turabian Style
    
                                Li, Long Hin,                                 Jetty Chung-Yung Lee,                                 Ho Hang Leung,                                 Wai Ching Lam,                                 Zhongjie Fu,                                 and Amy Cheuk Yin Lo.        
                2020. "Lutein Supplementation for Eye Diseases" Nutrients 12, no. 6: 1721.
        https://doi.org/10.3390/nu12061721
    
    APA Style
    
                                Li, L. H.,                                 Lee, J. C.-Y.,                                 Leung, H. H.,                                 Lam, W. C.,                                 Fu, Z.,                                 & Lo, A. C. Y.        
        
        (2020). Lutein Supplementation for Eye Diseases. Nutrients, 12(6), 1721.
        https://doi.org/10.3390/nu12061721