[1]
B. Portnoy and M. Beck, “The treatment of active chronic psoriasis: a comparison of the effectiveness of a preparation containing 0.1% dithranol and 17% urea in a cream base and 0.1% dithranol in Lassar´s past B.P.C”, Acta Derm Venereol, vol. 61, no. 5, pp. 459–461, Sep. 1981.