Late reactions to the patch-test preparations para-phenylenediamine and epoxy resin: a prospective multicentre investigation of the German Contact Dermatitis Research Group.
Hillen U, Jappe U, Frosch PJ, Becker D, Brasch J, Lilie M, Fuchs T, Kreft B, Pirker C, Geier J, et al. Br J Dermatol. 2006 Apr; 154(4):665-70.