[1] Mussi A,Bonifati C,Carducci M,et al.Serum TNF-alpha levels correlate with disease severity and are reduced by effective therapy in plaque-type psoriasis.J Biol Regul Homeost Agents,1997,11:115-118. [2] Orfanos CE,Zouboulis CC,Almond-Roesler B,et al.Current use and future potential role of retinoids in dermatology.Drugs,1997,53:358-588.