1. Diagnosis and management of red eye in primary care;Cronau;Am Fam Physician,2010
2. Frings A, Geerling G, Schargus M. Red eye: a guide for non-specialists [published correction appears in Dtsch Arztebl Int. 2017 Sep 22;114(38):641] [published correction appears in Dtsch Arztebl Int. 2017 Jul;114(24):418]. Dtsch Arztebl Int 2017;114:302–2.
3. Figures – Sexually Transmitted Disease Surveillance, 2019. Centers for Disease Control and Prevention. Published April 13, 2021. Accessed October 17, 2021. https://www.cdc.gov/std/statistics/2019/figures.htm
4. An update on the global epidemiology of syphilis;Kojima;Curr Epidemiol Rep,2018
5. Syphilis;Peeling;Nat Rev Dis Primers,2017