1. Preventive treatment of sunburn, dermatoheliosis and skin cancer with sun protective agents;Pathak,1993
2. Introduction;Urbach,1992
3. The natural UVA environment;Frederick,1992
4. Photochemotherapy of psoriasis with oral methoxsalen and longwave ultraviolet light;Parrish;New Eng J Med,1974
5. Acute effects of ultraviolet radiation on the skin;Norris,1993