Zhang, T., Lee, J., & Nguyen, C. Vitamin D Supplementation and Its Effect on Respiratory Tract Infections: A Meta-Analysis of Randomized Controlled Trials. Elsevier.
Chicago Style (17th ed.) CitationZhang, Tianou, Joon Lee, and Celine Nguyen. Vitamin D Supplementation and Its Effect on Respiratory Tract Infections: A Meta-Analysis of Randomized Controlled Trials. Elsevier.
MLA (9th ed.) CitationZhang, Tianou, et al. Vitamin D Supplementation and Its Effect on Respiratory Tract Infections: A Meta-Analysis of Randomized Controlled Trials. Elsevier.
Warning: These citations may not always be 100% accurate.