1. Department of Dermatology; Whipps Cross University Hospital; London E11 1NR U.K
2. Welsh Centre for Burns and Plastics; Morriston Hospital; Swansea SA6 6NL U.K
3. Department of Psychology; University of Sheffield; Western Bank; Sheffield S10 2TN U.K
4. Department of Psychology (Clinical Unit); University of Sheffield; Western Bank; Sheffield S10 2TN U.K