1. World Health Organization (WHO). Consolidated guidelines on the use of antiretroviral drugs for treating and preventing HIV infection: Recommentations for a public health approach. 2013.
2. WHO. Guideline on When to Start Antiretroviral Therapy and on Pre-Exposure Prophylaxis for HIV. 2015.
3. Barriers to antiretroviral initiation in HIV-1-discordant couples;BL Guthrie;J Acquir Immune Defic Syndr,2011
4. Correlation of WHO clinical staging with CD4 counts in adult HIV/AIDS patients at Kenyatta National Hospital, Nairobi;CS Ilovi;East Afr Med J,2011