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Virtanen M, Ferrie JE, Gimeno D, Vahtera J, Elovainio M, Singh-Manoux A, Marmot MG, Kivimäki M.Virtanen M, et al.Sleep. 2009 Jun;32(6):737-45. doi: 10.1093/sleep/32.6.737.Sleep. 2009.PMID: 19544749Free PMC article.
Singh-Manoux A, Britton AR, Marmot M.Singh-Manoux A, et al.J Am Geriatr Soc. 2003 Oct;51(10):1445-50. doi: 10.1046/j.1532-5415.2003.51464.x.J Am Geriatr Soc. 2003.PMID: 14511166Free article.
Singh-Manoux A, Richards M, Marmot M.Singh-Manoux A, et al.J Epidemiol Community Health. 2003 Nov;57(11):907-13. doi: 10.1136/jech.57.11.907.J Epidemiol Community Health. 2003.PMID: 14600119Free PMC article.
Britton A, Singh-Manoux A, Marmot M.Britton A, et al.Am J Epidemiol. 2004 Aug 1;160(3):240-7. doi: 10.1093/aje/kwh206.Am J Epidemiol. 2004.PMID: 15257997