1. University of Oxford; Department of Psychiatry; Warneford Hospital Oxford UK OX3 7JK
2. University of Birmingham; Department of Primary Care and General Practice; Edgbaston Birmingham UK BI5 2TT
3. Durham University, Queen's Campus; School of Medicine and Health; Wolfson Research Institute University Boulevard Stockton-on-Tees UK TS17 6BH
4. Newcastle University; Institute of Health & Society; 21 Claremont Place Newcastle-upon-Tyne Tyne and Wear UK NE2 4AA
5. University of York; York UK