1 卫生部药政局. 新药临床研究指导原则汇编, 1993. 145~150. 2 Hanawalt PC,Calvin N M,Lin SC. Split-dose PUVA to minimize risk in photochemot herapy for psoriasis. Proceedings of the third international symposium. New York: Grune, 1981.163. 3 Fitzpatrick T B,Stern RS,Parrish JA.The efficacy of PUVA photochemotherapy in the treatment of psoriasis.Proceedings of the third international symposium. New York :Grune, 1981. 149. 4 Roenigk HH, Maibach HI. Psoriasis. Marcel Dekker, Inc,1985. 475. 5 Parrish JA. Photochemotherapy: an overview. Proceedings of the third international symposium.New York:Grune,1981.425.