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Brinkhof, Martin W G; Pujades-Rodriguez, Mar; Egger, Matthias (2009). Mortality of patients lost to follow-up in antiretroviral treatment programmes in resource-limited settings: systematic review and meta-analysis. PLoS ONE, 4(6), e5790. Lawrence, Kans.: Public Library of Science 10.1371/journal.pone.0005790
