Abstract: presented at the 7th Annual Meeting of the American Society for Photobiology, June 24-28, Pacific Grove, California. Programs and Abstracts, p. 175. 53. Schleider, N. R., Moskowitz, R. S., Cort, D. H., et a!. (1979): Effects of emollients on ultraviolet-radiation-induced erythema of the skin. Arch. Dermato!' 115: 1188-1191. 54. Frost, P., Horwitz, S. N., Caputo, R. V., et a!. (1979): Tar gel-phototherapy for psoriasis. Arch. DermalOl. 115:840-846. 55. Kaidbey, K. H., Grove, G. L., and Kligman, A. M. (1979): The influence of longwave ultraviolet radiation on sunburn cell production by UVB. J. Invest. Dermato!' 73:243-245. 56. Gschnait, F., Brenner, W., and Wolff, K. (1978): Photoprotective effect of a psoralen-UVAinduced tan. Arch. Dermatol. Res. 268: 181-188. 57. Kaidbey, K. H., and Kligman, A. M. (1979): The acute effects of longwave ultraviolet radiation on human skin. 1. Invest. Dermatol. 72: 253-256. 58. Parrish, J. A., Zaynoun, S., and Anderson, R. R. (1981): Cumulative effects of repeated subthreshold doses of ultraviolet radiation. J. Invest. Dermatol. 76:352-355. 59. Everett, M. A., Daffer, E., and Coffey, C. M. (1961): Coal tar and ultraviolet light. Arch. DermalOl. 84:473-476. 60. Ellis, C. C. (1948): The treatment of psoriasis with liquor carbonis detergens. J. Invest. Dermatol. 10:455. 61. Ingram, J. T. (1953): The approach to psoriasis. Br. Med. J. 2:591-594. Phototherapy of Skin Diseases 531 62. Comaish, S. (1965): Ingram method of treating psoriasis. Arch. Dermato!. 92:56-58. 63. Beierdorffer, H., and Wiskemann, A. (1978): Kombinierte Therapie der Psoriasis mit einem aromatischen Retinoid (RO 10-9359) und UYB-Bestrahlungen. Aktue!. Dermato!. 4: 183-187. 64. Steigleder, G. K., Orfanos, C. E., and Pullmann, H. (1978): Retinoid-SUP-Therapie der Psoriasis. Z. Hautkr. 54: 19-23. 65. Momtaz-T., K., and Parrish, J. A. (1981): Combination UYB and PUY A in the treatment of psoriasis. J. Invest. Dermato!' 76: 303. 66. Walter, J. F., Stoughton, R. B., and DeQuoy, P. R. (1978): Suppression of epidermal and proliferation by ultraviolet light, coal tar and anthralin. Br. J. Dermato!' 99:89-96. 67. Stoughton, R. B., DeQuoy, P., and Walter, J. F. (1978): Crude coal tar plus near ultraviolet light suppresses DNA synthesis in epidermis. Arch. Dermato!' 114:43-45. 68. Cecht, T., Pathak, M. A., and Biswas, R. K. (1979): An electron microscopic study of the photochemical cross-linking of DNA in guinea pig epidermis by psoralen derivatives. Biochim. Biophys. Acta 562:342-360. 69. Pathak, M. A., and Biswas, R. K. (1977): Skin photosensitization and DNA cross-linking ability of photochemotherapeutic agents (Abstract). J. Invest. Dermato!. 68:236. 70. Stern, R. S., Zierler, S., and Parrish, J. A. (1980): Skin carcinoma in patients with psoriasis treated with topical tar and artificial radiation. Lancet 1:732-735.