Dinesh Bhugra is a reader in cultural psychiatry and heads the Section of Cultural Psychiatry at the Institute of Psychiatry (De Crespigny Park, Denmark Hill, London SE5 8AF). His research interests include cultural factors and social psychiatry, sexual dysfunction and sexual deviation. Kamaldeep Bhui is a senior lecturer in the Department of Psychiatry at St Bartholomew's and the Royal London School of Medicine, London. He is interested in cultural psychiatry and his research interests include working with refugees, religion and psychiatry and sexual dysfunction.