توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Hafliðadóttir, S. H., Juhl, C. B., Nielsen, S. M., Henriksen, M., Harris, I. A., Bliddal, H., & Christensen, R. (2021, July). Placebo response and effect in randomized clinical trials: Meta-research with focus on contextual effects. Trials.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Hafliðadóttir, Sigurlaug H., Carsten B. Juhl, Sabrina M. Nielsen, Marius Henriksen, Ian A. Harris, Henning Bliddal, و Robin Christensen. "Placebo Response and Effect in Randomized Clinical Trials: Meta-research with Focus on Contextual Effects." Trials Jul. 2021.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Hafliðadóttir, Sigurlaug H., et al. "Placebo Response and Effect in Randomized Clinical Trials: Meta-research with Focus on Contextual Effects." Trials, Jul. 2021.