Gambichler et al. demonstrated that, in their population, using a 25 mWcm−2 ultraviolet A-1 (UVA-1) source the median 24-hour delayed minimal erythema dose (MED) on the inner forearm was > 130 Jcm−2. This differs from the 20 Jcm−2 to 28 Jcm−2 median MED reported from our centre.
- Minimal erythemal dose
- Ultraviolet Rays