1. Purine and purine nucleoside antimetabolites;McCormack,1990
2. Thioguanine in the treatment of certain autoimmune, immunologic and related diseases;Demis;Am J Med,1964
3. Thioguanine for psoriasis;Zackheim,1982
4. Treatment of psoriasis with 6-thioguanine;Zackheim;Semin Dermatol,1985
5. 6-Thioguanine;Zackheim,1991