Silverstein, H., Fabian, R., Stool, S., and Hung, S.: Penetration Wounds of the Tympanic Membrane and Ossicular Chain. American Academy of Ophthamology and Otolaryngology Meetings: Dallas, Texas, Sept. 28, 1972.
3.
Lipscomb, D.M. : How frequent are ear lesions and hearing defects among U.S. children. Clin. Pediatr.12: 125, 1973.
4.
Neyhus, A.: The Use of Nonverbal Tests of Intelligence to Predict Academic Achievement in Deaf and Hard of Hearing Children. Report, State of Illinois, Office of the Superintendent of Public Instruction (in press).
5.
Simonton, K.M. : Audiometry: Principles and Practice, Glorig, A., Ed. Baltimore, Williams & Wilkens Co., 1965, p. 198.
6.
Kreiter, K.: Effects of Noise on Man. Monograph: Industrial Noise Manual, 2nd ed., American Institute of Industrial Hygiene Association, Detroit, 85, 1966.
