Cita APA (7th ed.)
Elm, E. v., Altman, D. G., Egger, M., Pocock, S. J., Gøtzsche, P. C., & Vandenbroucke, J. P. (Nov 2007). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for reporting observational studies*. World Health Organization. Bulletin of the World Health Organization.
Cita Chicago (17th ed.)
Elm, Erik von, Douglas G. Altman, Matthias Egger, Stuart J. Pocock, Peter C. Gøtzsche, i Jan P. Vandenbroucke. "The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies*." World Health Organization. Bulletin of the World Health Organization Nov 2007.
Cita MLA (9th ed.)
Elm, Erik von, et al. "The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies*." World Health Organization. Bulletin of the World Health Organization, Nov 2007.
Atenció: Aquestes cites poden no estar 100% correctes.