Manda, Samuel O.M., Carl J. Lombard, and Thabang Mosala. “Divergent Spatial Patterns in the Prevalence of the Human Immunodeficiency Virus (HIV) and Syphilis in South African Pregnant Women”. Geospatial Health 6, no. 2 (May 1, 2012): 221–231. Accessed November 24, 2024. https://www.geospatialhealth.net/gh/article/view/140.