APA ציטוט

Smolders, J., van den Ouweland, J., Geven, C., Pickkers, P., & Kox, M. (2021). Letter to the Editor: Vitamin D deficiency in COVID-19: Mixing up cause and consequence. Metabolism.

Citação norma Chicago

Smolders, Joost, Jody van den Ouweland, Christopher Geven, Peter Pickkers, and Matthijs Kox. "Letter to the Editor: Vitamin D Deficiency in COVID-19: Mixing Up Cause and Consequence." Metabolism 2021.

ציטוט MLA

Smolders, Joost, et al. "Letter to the Editor: Vitamin D Deficiency in COVID-19: Mixing Up Cause and Consequence." Metabolism 2021.