Bibliografisk träff 2000-05-01 An evaluation of the biologic activity and vitamin D receptor binding affinity of the photoisomers of vitamin D3 and previtamin D3. Chen TC, Persons KS, Lu Z, Mathieu JS, Holick MF. J Nutr Biochem · research support, u.s. gov't, p.h.s.; research support, non-u.s. gov't; journal article · DOI 10.1016/s0955-2863(00)00077-2