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Abubakar I, Crofts JP, Gelb D, Story A, Andrews N, Watson JM.Abubakar I, et al. Among authors: andrews n.Epidemiol Infect. 2008 Jan;136(1):122-7. doi: 10.1017/S0950268807008333. Epub 2007 Mar 15.Epidemiol Infect. 2008.PMID: 17359565Free PMC article.
Pebody RG, Morgan O, Choi Y, George R, Hussain M, Andrews N.Pebody RG, et al. Among authors: andrews n.Epidemiol Infect. 2009 Apr;137(4):555-61. doi: 10.1017/S0950268808001143. Epub 2008 Jul 31.Epidemiol Infect. 2009.PMID: 18667110
Fleming DM, Andrews NJ, Ellis JS, Bermingham A, Sebastianpillai P, Elliot AJ, Miller E, Zambon M.Fleming DM, et al. Among authors: andrews nj.J Epidemiol Community Health. 2010 Dec;64(12):1062-7. doi: 10.1136/jech.2009.093450. Epub 2009 Nov 12.J Epidemiol Community Health. 2010.PMID: 19910645