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Coughlin SS, Giustozzi A, Smith SJ, Lee NC.Coughlin SS, et al. Among authors: smith sj.J Clin Epidemiol. 2000 Apr;53(4):367-75. doi: 10.1016/s0895-4356(99)00179-1.J Clin Epidemiol. 2000.PMID: 10785567
Steinberg KK, Smith SJ, Stroup DF, Olkin I, Lee NC, Williamson GD, Thacker SB.Steinberg KK, et al. Among authors: smith sj.Am J Epidemiol. 1997 May 15;145(10):917-25. doi: 10.1093/oxfordjournals.aje.a009051.Am J Epidemiol. 1997.PMID: 9149663
Henderson LO, Hannon WH, Smith SJ, Cooper GR.Henderson LO, et al. Among authors: smith sj.Clin Chem. 1987 Dec;33(12):2250-6.Clin Chem. 1987.PMID: 3121215
Caudill SP, Cooper GR, Smith SJ, Myers GL.Caudill SP, et al. Among authors: smith sj.Clin Chem. 1998 Aug;44(8 Pt 1):1650-8.Clin Chem. 1998.PMID: 9702951