Kazemi, A., Mohammadi, V., Aghababaee, S. K., Golzarand, M., Clark, C. C. T., & Babajafari, S. (2021). Association of Vitamin D Status with SARS-CoV-2 Infection or COVID-19 Severity: A Systematic Review and Meta-analysis. Adv Nutr.

Kazemi, Asma, Vida Mohammadi, Sahar Keshtkar Aghababaee, Mahdieh Golzarand, Cain C T. Clark, και Siavash Babajafari. "Association of Vitamin D Status With SARS-CoV-2 Infection or COVID-19 Severity: A Systematic Review and Meta-analysis." Adv Nutr 2021.

Kazemi, Asma, et al. "Association of Vitamin D Status With SARS-CoV-2 Infection or COVID-19 Severity: A Systematic Review and Meta-analysis." Adv Nutr 2021.