Boyer Sylvie, March Laura, Kouanfack Charles, Laborde-Balen Gabrièle, Marino Patricia, Aghokeng Fobang Avelin, Mpoudi-Ngole Eitel, Koulla-Shiro Sinata, Delaporte Eric, Carrieri Maria Patrizia, Spire Bruno, Laurent Christian, Moatti Jean-Paul. Monitoring of HIV viral load, CD4 cell count, and clinical assessment versus clinical monitoring alone for antiretroviral therapy in low-resource settings (Stratall ANRS 12110/ESTHER): a cost-effectiveness analysis. The Lancet Infectious Diseases. 2013;13(7):577-586.