Medeiros, M. R., Parma, G. O. C., Schuelter-Trevisol, F. and Iser, B. P. M. (2021) “Acquired syphilis in the population with 50 years old or more: Geographic distribution and trends”, Scientia Medica, 31(1), p. e39292. doi: 10.15448/1980-6108.2021.1.39292.