Schleye, V.; Weber, O.; Yazdi, A.; Benedix, F.; Dietz, K.; Röcken, M.; Berneburg, M. Prevention of Polymorphic Light Eruption With a Sunscreen of Very High Protection Level Against UVB and UVA Radiation Under Standardized Photodiagnostic Conditions. Acta Derm Venereol 2008, 88, 555-560.