1. Department of Cell and Molecular Pathology, St John's Institute of Dermatology, United Medical and Dental Schools, St Thomas' Campus, London, U.K.,
2. Department of Dermatology, Christian‐Albrechts‐University, Kiel, Germany
3. Division of Cell Biology, German Cancer Research Center, Heidelberg, Germany,
4. Centre for Cutaneous Research, The Royal London School of Medicine and Dentistry, London, U.K.,
5. Epithelial Genetics Group, Department of Dermatology and Cutaneous Biology, Jefferson Medical College, Philadelphia, PA, U.S.A.,
6. Cancer Research Campaign Cell Structure Research Group, Department of Anatomy and Physiology, The University of Dundee, U.K.,