1. Department of Dermatology and Interfaculty Institute for Biochemistry, Eberhard Karls University, D-72076 Tuebingen, Germany
2. Department of Toxicogenetics, Leiden University Medical Center, 2300 RC Leiden, Netherlands
3. Institut für Biochemie und Molekularbiologie, ZBMZ, Universität Freiburg, 79104 Freiburg, Germany
4. Health Protection Research, National Institute of Public Health and the Environment, Pathobiology Department, Dutch Molecular Pathology Centre, Utrecht University, 3508 TD Utrecht, Netherlands
5. Institut für Umweltmedizinische Forschung IUF, D-40225 Düsseldorf, Germany
6. Department of Genetics, Erasmus University Medical Center, 3015 GE Rotterdam, Netherlands