APA-Zitierstil (7. Ausg.)

Kümmel, L. S., Krumbein, H., Fragkou, P. C., Hünerbein, B. L., Reiter, R., Papathanasiou, K. A., . . . Skevaki, C. (2022). Vitamin D supplementation for the treatment of COVID-19: A systematic review and meta-analysis of randomized controlled trials. Philipps-Universität Marburg. https://doi.org/10.3389/fimmu.2022.1023903

Chicago-Zitierstil (17. Ausg.)

Kümmel, Lara S., et al. Vitamin D Supplementation for the Treatment of COVID-19: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Philipps-Universität Marburg, 2022. https://doi.org/10.3389/fimmu.2022.1023903.

MLA-Zitierstil (9. Ausg.)

Kümmel, Lara S., et al. Vitamin D Supplementation for the Treatment of COVID-19: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Philipps-Universität Marburg, 2022. https://doi.org/10.3389/fimmu.2022.1023903.

警告:这些引文格式不一定是100%准确.