Risk factors for active syphilis and TPHA seroconversion in a rural African population
J Todd, K Munguti, H Grosskurth, J Mngara, J Changalucha, P Mayaud, F Mosha, A Gavyole, D Mabey, R Hayes
Sexually Transmitted Infections Feb 2001, 77 (1) 37-45; DOI: 10.1136/sti.77.1.37