title: Effect of wavelength on production of previtamin D2.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004875:Ergosterol / Q000138:chemical synthesis*; D007536:Isomerism; D007700:Kinetics; D011830:Radiation Effects; D013696:Temperature; D014466:Ultraviolet Rays; D014807:Vitamin D / Q000528:radiation effects*
chemical_list: D014807:Vitamin D; D004875:Ergosterol