Work sited

http://www.cdc.gov/healthywater/swimming/rwi/illnesses/swimmers-ear.html
http://www.nhs.uk/Conditions/otitis-externa/Pages/Introduction.aspx
http://umm.edu/health/medical/ency/articles/malignant-otitis-externa
http://emedicine.medscape.com/article/994550-overview
http://www.medicineonline.com/topics/o/2/Otitis-Interna/Labyrinthitis/info/Prevention-&-Expectations.html
http://www.newbornbabyzone.com/health-safety/how-to-prevent-your-baby-from-developing-ear-infection/
http://www.whitsonvision.com/UserFiles/Image/ear_diagram_outlines.jpg
http://www.alergiasencostarica.com/el-oido/otitis-externa.html
http://www.mayoclinic.org/diseases-conditions/ear-infections/basics/risk-factors/con-20014260
http://www.thirdage.com/hc/c/otitis-media-prevention