von Elm, E., Altman, D., Egger, M., Pocock, S., Gøtzsche, P., Vandenbroucke, J., & initiative, S. (2007). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: Guidelines for reporting observational studies. Elsevier.
Chicago-referens (17:e uppl.)von Elm, E., DG Altman, M. Egger, SJ Pocock, P. Gøtzsche, J. Vandenbroucke, och STROBE initiative. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies. Elsevier, 2007.
MLA-referens (9:e uppl.)von Elm, E., et al. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies. Elsevier, 2007.
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