López, Catalina, and Santiago Estrada. 2005. “Comparison Between the Immunochromatography Technique an the Particles Agglutination Test Against T Pallidum (TP-PA) for the Diagnostic of Syphilis”. Medicina UPB 24 (2): 159-63. https://revistas.upb.edu.co/index.php/medicina/article/view/2439.