1. Anias C. R. (2002). Otorhinolaryngology. Retrieved February 5 2002 from http://www.medstudents.com.br/otor/otor6.html
2. Anonymous. (2002). Otosclerosis. Retrieved February 5 2002 from http://www.bcm.tmc.edu/oto/otologyprimer/otosclerosis/Otosclerosis.html.
3. Self-assessment in audiology: The clinical rationale;Erdman S. A.;Seminars in Hearing,1993
4. The subjective meaning of illness in severe otosclerosis: A descriptive study in three steps based on focus group interviews and written questionnaire;Ericksson-Mangold M.;Scandinavian Audiology,1996