Zotarelli Filho, I. J., A. V. Garcia Ramirez, and D. Ribas Filho. “Major Meta-Analysis, Randomized Clinical Studies, and International Consensus on Serum Levels and Importance of Supplementing Vitamin D: State of the Art”. MedNEXT Journal of Medical and Health Sciences, vol. 2, no. 2, Mar. 2021, pp. 54–66, doi:10.34256/mdnt2129.