1. The action spectrum for vitamin D3: initial skin reaction and prolonged exposure. Issue 7 (10th June 2016) Authors: van Dijk, Arjan; den Outer, Peter; van Kranen, Henk; Slaper, Harry Journal: Photochemical & photobiological sciences Issue: Volume 15:Issue 7(2016:Jul.) Page Start: 896 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗