Low-dose UVB radiation perturbs the functional expression of B7.1 and B7.2 co-stimulatory molecules on human Langerhans cells. - Weiss,J.M.; Renkl,A.C.; Denfeld,R.W.; de-Roche,R.; Spitzlei,M.; Schöpf,E.; Simon,J.C. (Eur J Immunol, 1995)