A variety of collaborations with colleagues nationally and internationally (especially Norway and the USA). Member of the standing committee of the International Consortium for Research and Action Against Health-Related Stigma. Current research interests include: comparative study of stigma as a barrier to health interventions with sex workers; sexual trafficking; ther impact of biological, psychological and social mechanisms on epilepsy-related quality of life; class and health inequality; the differential prestige attaching to medical diagnoses; and patient education and empowerment.