Cita APA (7a ed.)

Ulvenes, L. V., Aasland, O., Nylenna, M., & Kristiansen, I. S. (2009). Norwegian physicians' knowledge of and opinions about evidence-based medicine: Cross-sectional study. Public Library of Science (PLoS).

Cita Chicago Style (17a ed.)

Ulvenes, Lidziya Vanahel, Olaf Aasland, Magne Nylenna, y Ivar Sønbø Kristiansen. Norwegian Physicians' Knowledge of and Opinions About Evidence-based Medicine: Cross-sectional Study. Public Library of Science (PLoS), 2009.

Cita MLA (8a ed.)

Ulvenes, Lidziya Vanahel, et al. Norwegian Physicians' Knowledge of and Opinions About Evidence-based Medicine: Cross-sectional Study. Public Library of Science (PLoS), 2009.