A comparative randomized study of narrow-band (NB) (312 +/- 2 nm) UVB phototherapy versus sequential therapy with oral administration of low-dose Cyclosporin A and NB-UVB phototherapy in patients with severe psoriasis vulgaris. - Calzavara-Pinton,P.; Leone,G.; Venturini,M.; Sala,R.; Colombo,D.; Parola,I.L.; Sitzia,N.; Ferraro,C.; Picardo,M. (Eur J Dermatol, 2005)