Simon M. Dyson is Professor of Applied Sociology and Director of the Unit for the Social Study of Thalassaemia and Sickle Cell, De Montfort University, UK. He is author of Ethnicity and Screening for Sickle Cell/Thalassaemia (2005) and Sickle Cell and Deaths in Custody (2009, with Gwyneth Boswell).

Karl Atkin is a sociologist, and Professor in the Department of Health Sciences at the University of York, UK. He is author of The Politics of Sickle Cell and Thalassaemia (2001, with Elizabeth Anionwu) and co-editor of Race and Social Policy (2012, with Gary Craig, Sangeeta Chattoo and Ronny Flynn).