Musema, G. M., A. M. Mapatano, D. K. Tshala, and P. K. Kayembe. “HIV-1-Syphilis Co-Infection Associated With High Viral Load in Female Sex Workers in the Democratic Republic of the Congo”. International Journal of Translational Medical Research and Public Health, vol. 4, no. 1, July 2020, pp. 93-102, doi:10.21106/ijtmrph.140.