Affiliation: | 1. Department of Dermatology, Katholieke Universiteit Leuven, , B‐3000 Leuven, Belgium;2. Department of Occupational and Environmental Dermatology, Sk?ne University Hospital, Lund University, , S‐205 02 Malm?, Sweden;3. Dermatology, Algemeen Ziekenhuis Sint‐Elisabeth, , B‐9620 Zottegem, Belgium |