1. Queen's University Belfast; School of Social Sciences, Education and Social Work; 6 College Park Belfast Northern Ireland UK BT7 1LP
2. University of Warwick; Warwick Medical School; Coventry UK UK CV4 7AL
3. University of Oxford; Department of Social Policy and Intervention; Barnett House 32 Wellington Square Oxford UK OX1 2ER
4. Cochrane; Editorial & Methods Department; St Albans House 57-59 Haymarket London UK SW1Y 4QX
5. University of Plymouth; Centre for Mathematical Sciences, School of Engineering, Computing and Mathematics; Plymouth UK
6. University of Glasgow; School of Social and Political Sciences, Department of Sociology; Adam Smith Building, Room 513 Bute Garden Glasgow UK G12 8RT
7. University of Bristol; School for Policy Studies; Priory Road Bristol UK BS8 1TZ