Komba, S., Kotake-Nara, E., & Tsuzuki, W. (2019). Simultaneous Synthesis of Vitamins D2, D4, D5, D6, and D7 from Commercially Available Phytosterol, β-Sitosterol, and Identification of Each Vitamin D by HSQC NMR. Metabolites, 9(6), 107. doi:10.3390/metabo9060107
