J. M. Njah, G. E. Halle-Ekane, S. N. Atanga, E. K. Tshimwanga, F. Desembuin, and P. T. Muffih, “From Option B+ to Universal ‘Test and Treat’ in Cameroon: Identification and Evaluation of District-level Factors Associated with Retention in Care”, Int J MCH AIDS, vol. 12, no. 2, p. e631, Sep. 2023.