Webgrafía

http://www.cdc.gov/std/spanish/sifilis/stdfact-syphilis-s.htm

http://www.cdc.gov/std/spanish/vph/stdfact-hpv-s.htm

http://www.quierosaber.org/ets/vih-sida.html

http://www.cdc.gov/std/spanish/gonorrea/stdfact-gonorrhea-s.htm

http://www.who.int/mediacentre/factsheets/fs110/es/

https://es.wikipedia.org/wiki/Infecciones_de_transmisi%C3%B3n_sexual

https://www.nlm.nih.gov/medlineplus/spanish/sexuallytransmitteddiseases.html

http://www.cdc.gov/std/spanish/clamidia/stdfact-chlamydia-s.htm

http://www.cdc.gov/std/spanish/herpes/stdfact-herpes-s.htm

https://www.nlm.nih.gov/medlineplus/spanish/ency/article/000594.htm

http://www.cdc.gov/std/spanish/tricomoniasis/stdfact-trichomoniasis-s.htm

https://www.nlm.nih.gov/medlineplus/spanish/ency/article/000279.htm