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Goodyer I, Dubicka B, Wilkinson P, Kelvin R, Roberts C, Byford S, Breen S, Ford C, Barrett B, Leech A, Rothwell J, White L, Harrington R.Goodyer I, et al. Among authors: roberts c.BMJ. 2007 Jul 21;335(7611):142. doi: 10.1136/bmj.39224.494340.55. Epub 2007 Jun 7.BMJ. 2007.PMID: 17556431Free PMC article.Clinical Trial.
Johnson RE, Jones GT, Wiles NJ, Chaddock C, Potter RG, Roberts C, Symmons DP, Watson PJ, Torgerson DJ, Macfarlane GJ.Johnson RE, et al. Among authors: roberts c.Spine (Phila Pa 1976). 2007 Jul 1;32(15):1578-85. doi: 10.1097/BRS.0b013e318074f890.Spine (Phila Pa 1976). 2007.PMID: 17621203Clinical Trial.
Gowers SG, Clark A, Roberts C, Griffiths A, Edwards V, Bryan C, Smethurst N, Byford S, Barrett B.Gowers SG, et al. Among authors: roberts c.Br J Psychiatry. 2007 Nov;191:427-35. doi: 10.1192/bjp.bp.107.036764.Br J Psychiatry. 2007.PMID: 17978323Clinical Trial.