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Siedner, Mark J., Courtney K. Ng, Ingrid V. Bassett, Ingrid T. Katz, David R. Bangsberg, et Alexander C. Tsai. "Trends in CD4 Count At Presentation to Care and Treatment Initiation in Sub-Saharan Africa, 2002–2013: A Meta-analysis." Clin Infect Dis 2015.

Siedner, Mark J., et al. "Trends in CD4 Count At Presentation to Care and Treatment Initiation in Sub-Saharan Africa, 2002–2013: A Meta-analysis." Clin Infect Dis 2015.