APA (7th ed.) Citation

Qiao, Y., Wang, X., Ma, Y., & Hu, J. Variations in vitamin D status among Chinese children aged 1–6 years during the COVID-19 pandemic. Frontiers Media S.A.

Chicago Style (17th ed.) Citation

Qiao, Yongfeng, Xiaoqin Wang, Yanfen Ma, and Jian Hu. Variations in Vitamin D Status Among Chinese Children Aged 1–6 Years During the COVID-19 Pandemic. Frontiers Media S.A.

MLA (9th ed.) Citation

Qiao, Yongfeng, et al. Variations in Vitamin D Status Among Chinese Children Aged 1–6 Years During the COVID-19 Pandemic. Frontiers Media S.A.