Berild, J.D.;                     Winje, B.A.;                     Vestrheim, D.F.;                     Slotved, H.-C.;                     Valentiner-Branth, P.;                     Roth, A.;                     Storsäter, J.    
        A Systematic Review of Studies Published between 2016 and 2019 on the Effectiveness and Efficacy of Pneumococcal Vaccination on Pneumonia and Invasive Pneumococcal Disease in an Elderly Population. Pathogens 2020, 9, 259.
    https://doi.org/10.3390/pathogens9040259
    AMA Style
    
                                Berild JD,                                 Winje BA,                                 Vestrheim DF,                                 Slotved H-C,                                 Valentiner-Branth P,                                 Roth A,                                 Storsäter J.        
                A Systematic Review of Studies Published between 2016 and 2019 on the Effectiveness and Efficacy of Pneumococcal Vaccination on Pneumonia and Invasive Pneumococcal Disease in an Elderly Population. Pathogens. 2020; 9(4):259.
        https://doi.org/10.3390/pathogens9040259
    
    Chicago/Turabian Style
    
                                Berild, Jacob Dag,                                 Brita Askeland Winje,                                 Didrik Frimann Vestrheim,                                 Hans-Christian Slotved,                                 Palle Valentiner-Branth,                                 Adam Roth,                                 and Jann Storsäter.        
                2020. "A Systematic Review of Studies Published between 2016 and 2019 on the Effectiveness and Efficacy of Pneumococcal Vaccination on Pneumonia and Invasive Pneumococcal Disease in an Elderly Population" Pathogens 9, no. 4: 259.
        https://doi.org/10.3390/pathogens9040259
    
    APA Style
    
                                Berild, J. D.,                                 Winje, B. A.,                                 Vestrheim, D. F.,                                 Slotved, H.-C.,                                 Valentiner-Branth, P.,                                 Roth, A.,                                 & Storsäter, J.        
        
        (2020). A Systematic Review of Studies Published between 2016 and 2019 on the Effectiveness and Efficacy of Pneumococcal Vaccination on Pneumonia and Invasive Pneumococcal Disease in an Elderly Population. Pathogens, 9(4), 259.
        https://doi.org/10.3390/pathogens9040259