Bibliografias:
http://www.nlm.nih.gov/medlineplus/spanish/ency/article/001047.htm
"http://es.wikipedia.org/wiki/Angina_de_Ludwig"
http://www.odontologia-online.com/php/phpBB2/about1898.html
http://www.lookfordiagnosis.com/mesh_info.php?term=Angina+De+Ludwig&lang=2
http://www.umm.edu/esp_ency/article/001047.htm
http://www.hakeem-sy.com/main/files/Ludwig_angina3.jpg