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Ndirangu J, Bland R, Bärnighausen T, Newell ML.Ndirangu J, et al. Among authors: bland r.BMC Public Health. 2011 May 23;11:372. doi: 10.1186/1471-2458-11-372.BMC Public Health. 2011.PMID: 21605408Free PMC article.
Chetty T, Carter RJ, Bland RM, Newell ML.Chetty T, et al.Trop Med Int Health. 2014 Jul;19(7):852-62. doi: 10.1111/tmi.12320. Epub 2014 Apr 11.Trop Med Int Health. 2014.PMID: 24720779Free PMC article.