1. Department of Dermatology and Venereology; All India Institute of Medical Sciences; New Delhi India
2. Academic Dermatology; Aneurin Bevan Health Board, Stow Hill; St Woolos Hospital; Newport NP20 4SZ U.K.
3. School of Biomedical Sciences; Faculty of Medical Sciences; Newcastle University Medical School, Framlington Place; Newcastle upon Tyne NE2 4HH U.K.
4. Betsi Cadwaladr University Health Board; Ysbyty Gwynedd, Penrhosgarnedd; Bangor Gwynedd LL57 2PY U.K.