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Smith GC, Shah I, Crossley JA, Aitken DA, Pell JP, Nelson SM, Cameron AD, Connor MJ, Dobbie R.Smith GC, et al. Among authors: crossley ja.Obstet Gynecol. 2006 Jan;107(1):161-6. doi: 10.1097/01.AOG.0000191302.79560.d8.Obstet Gynecol. 2006.PMID: 16394054
Smith GC, Shah I, White IR, Pell JP, Crossley JA, Dobbie R.Smith GC, et al. Among authors: crossley ja.Int J Epidemiol. 2006 Oct;35(5):1169-77. doi: 10.1093/ije/dyl154. Epub 2006 Jul 31.Int J Epidemiol. 2006.PMID: 16882673
Smith GC, Shah I, Pell JP, Crossley JA, Dobbie R.Smith GC, et al. Among authors: crossley ja.Am J Public Health. 2007 Jan;97(1):157-62. doi: 10.2105/AJPH.2005.074294. Epub 2006 Nov 30.Am J Public Health. 2007.PMID: 17138924Free PMC article.