[1] Kleijnen Systemat Reviews Ltd, Unit 6,Escrick Business Pk,Riccall Rd, York YO19 6FD, N Yorkshire, England
[2] Univ Utrecht, Univ Med Ctr Utrecht, Julius Ctr Hlth Sci & Primary Care, POB 85500, NL-3508 GA Utrecht, Netherlands
[3] Univ Utrecht, Univ Med Ctr Utrecht, Cochrane Netherlands, Utrecht, Netherlands
[4] Keele Univ, Res Inst Primary Care & Hlth Sci, Ctr Prognosis Res, Keele ST5 5BG, Staffs, England
[5] Univ Bristol, Sch Med, Bristol, Avon, England
[6] Univ Hosp Bristol Natl Hlth Serv Fdn Trust, Natl Inst Hlth Res Collaborat Leadership Appl Hlt, Bristol BS1 2NT, Avon, England
[7] Univ Oxford, Ctr Stat Med, Oxford, England
[8] Maastricht Univ, Sch Publ Hlth & Primary Care, Maastricht, Netherlands
[9] Univ Birmingham, Coll Med & Dent Sci, Natl Inst Hlth Res Birmingham Biomed Res Ctr, Inst Appl Hlth Res, Birmingham, W Midlands, England
[10] Univ Bristol, Sch Social & Community Med, Bristol BS1 2NT, Avon, England
[11] Univ Oxford, Botnar Res Ctr, NDORMS, Ctr Stat Med, Windmill Rd, Oxford OX3 7LD, England
[12] Univ Birmingham, Inst Appl Hlth Sci, Birmingham B15 2TT, W Midlands, England
[13] Keele Univ, Keele, Staffs, England
[14] Univ Hosp Bristol NHS Fdn Trust, Bristol, Avon, England
[15] Univ Bristol, Bristol, Avon, England
[16] Univ Oxford, Nuffield Dept Orthopaed Rheumatol & Musculoskelet, Ctr Stat Med, Oxford, England
[17] Univ Amsterdam, Div Clin Methods & Publ Hlth, Amsterdam, Netherlands
[18] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA
[19] Osped Vincenzo Cervello, Palermo, Italy
[20] Univ Birmingham, Inst Appl Hlth Res, Birmingham, W Midlands, England
[21] Philips Image Guided Therapy Syst, Best, Netherlands
[22] Univ Cambridge, Dept Publ Hlth & Primary Care, Cambridge, England
[23] Royal Coll Surgeons Ireland, Dublin, Ireland
[24] Vanderbilt Univ, Dept Biostat, 221 Kirkland Hall, Nashville, TN 37235 USA
[25] Dalhousie Univ, Dept Community Hlth & Epidemiol, Halifax, NS, Canada
[26] Vrije Univ UMC, Amsterdam Publ Hlth Res Inst, Dept Epidemiol & Biostat, Amsterdam, Netherlands
[27] Univ Exeter, Sch Med, Inst Hlth Res, Exeter, Devon, England
[28] Stanford Univ, Meta Res Innovat Ctr Stanford, Palo Alto, CA 94304 USA
[29] McMaster Univ, Dept Hlth Res Methods Evidence & Impact, Hamilton, ON, Canada
[30] Maastricht Univ, Dept Family Med, Maastricht, Netherlands
[31] Univ Amsterdam, Dept Clin Epidemiol Biostat & Bioinformat, Amsterdam, Netherlands
[32] Natl Inst Hlth & Care Excellence, Manchester, Lancs, England
[33] London Sch Hyg & Trop Med, Ctr Global Chron Condit, London, England
[34] Ctr Reviews & Disseminat, York, N Yorkshire, England
[35] Radboud UMC, Dept Operating Rooms, Nijmegen, Netherlands
[36] Radboud UMC, Dept Hlth Evidence, Nijmegen, Netherlands
[37] Univ Bern, Inst Social & Prevent Med, Bern, Switzerland
[38] Univ Bern, Inst Primary Hlth Care, Bern, Switzerland
[39] Univ Freiburg, Fac Med, Inst Med Biometry & Stat, Freiburg, Germany
[40] Univ Freiburg, Med Ctr, Freiburg, Germany
[41] Inst Qual & Efficiency Healthcare, Cologne, Germany
[42] UMC Schleswig Holstein, Kiel, Germany
[43] Erasmus UMC, Dept Publ Hlth, Rotterdam, Netherlands
[44] Leiden UMC, Dept Biomed Data Sci, Leiden, Netherlands
[45] Univ Amsterdam, Dept Gen Practice, Amsterdam, Netherlands
[46] Keele Univ, Ctr Prognosis Res, Keele, Staffs, England
[47] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA