Comment on

• Narrowband UV-B produces superior clinical and histopathological resolution of moderate-to-severe psoriasis in patients compared with broadband UV-B.

  Coven TR, Burack LH, Gilleaudeau R, Keogh M, Ozawa M, Krueger JG. Coven TR, et al. Arch Dermatol. 1997 Dec;133(12):1514-22. Arch Dermatol. 1997. PMID: 9420535 Clinical Trial.