OKONKO, I. O.; COOKEY, T. I.; ADEWUYI-OSENI, S.; AWANYE, A. M. Detection of Treponema pallidum (Syphilis) Antibodies among HIV-Infected Individuals and Sexually-active Attendees of Two Health Facilities in Port Harcourt, Nigeria. International STD Research & Reviews, v. 9, n. 2, p. 17-23, 9 set. 2020.