K. Workowski, und S. Berman. MMWR. Recommendations and Reports: Morbidity and Mortality Weekly Report. Recommendations and Reports / Centers for Disease Control, 55 (RR-11):
1--94(August 2006)PMID: 16888612.
J. Reed, J. Thistlethwaite, und J. Huppert. The Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine, 41 (1):
14--18(Juli 2007)PMID: 17577529.