<qa>  What is the combination of Daclizumab and Cyclosporine?This study compares the efficacy and analyzes the cellular effects of anti-TAC Daclizumab and Cyclosporine in the treatment of psoriasis vulgaris. This is a three-armed study-Daclizumab alone, Cyclosporine alone, and the combination of both Daclizumab and Cyclosporine. 