Abdool-Karim, Salim S., Quarraisha Abdool-Karim, Gerald Friedland, Umesh Lalloo, and Wafaa M. El-Sadr. "Implementing antiretroviral therapy in resource-constrained settings: opportunities and challenges in integrating HIV and tuberculosis care." AIDS (London, England) 18, no. 7 (2004): 975-9.