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Griffith LE, Cook DJ, Guyatt GH, Charles CA.Griffith LE, et al. Among authors: cook dj.J Clin Epidemiol. 1999 Oct;52(10):997-1005. doi: 10.1016/s0895-4356(99)00106-7.J Clin Epidemiol. 1999.PMID: 10513763