1. Leeds Metropolitan University; Faculty of Health; Calverley Street Leeds UK LS1 3HE
2. James Lind Initiative; Database of Uncertainties about the Effects of Treatments (DUETs); Summertown Pavilion Middle Way Oxford UK OX2 7LG
3. Kleijnen Systematic Reviews Ltd; Westminster Business Centre 10 Great North Way, Nether Poppleton York UK YO26 6RB
4. Cardiff University; Department of General Practice; Centre for Health Sciences / North Wales Clinical School School of Medicine, Gwenfro Buiding Wrexham UK LL13 7YP