1. Centers for Disease Control and Prevention: Sexually transmitted disease surveillance 2010. 2011, Atlanta: U.S. Department of Health and Human Services
2. European Centre for Disease Prevention and Control: Sexually transmitted infections in Europe 1990-2010. 2010, Stockholm: ECDC
3. NNDSS Annual Report Writing Group: Australia's notifiable disease status, 2010: annual report of the National Notifiable Disease Surveillance System. Commun Dis Intell. 2012, 36 (1): 1-69.
4. Hook E, Handsfield HH: Gonococcal infections in the adult. Sexually Transmitted Diseases. Edited by: Holmes K, Mardh P, Sparling P. 1999, New York, NY: McGraw-Hill, 3
5. Peipert JF: Genital chlamydial infections. N Engl J Med. 2003, 349 (25): 2424-2430. 10.1056/NEJMcp030542.