Copyright ©The Author(s) 2016.
World J Immunol. Mar 27, 2016; 6(1): 39-59
Published online Mar 27, 2016. doi: 10.5411/wji.v6.i1.39
Figure 1
Figure 1 Structure of vitamin D and retinoic acid. A: The chemical structure of vitamin D3 and vitamin D2 are indicated by line diagrams; B: The chemical structure of retinoic acid is indicated by line diagrams.