3Mank GW, Behrens TR. Historical, political, and technological context associated with early identification of hearing loss [ J] . Semin Hearing, 1993, 14:1.
4Parving A. Congenital hearing disability: epidemiology and identification: a comparison between two health authority districts [ J] . International Journal of Pediatric Otorhinolaryngology, 1993, 27 ( 1 ) : 29.
5Watkins P, Baldwin M, McEnery G. Neonatal at risk screening and the identification of deafness [J] . Arch Dis Child, 1991, 66 (10 spec No) : 1130.
6Northern JL, Hayes DH. Universal screening for infant hearing impairment: necessary, beneficial and justifiable [ J ] . Audiol Today, 1994, 6 (3): 10.
7Yoshinaga - Itano C, Coulter D, Thompson V. Developmental outcomes of children with hearing loss born in hospitals with and without universal newborn hearing screening programs [ J] . Semin Neonatol, 2001, 6 (6) : 521.
8Morlet T, Moulin A , Putet G,et al. Hearing disorders screening in nehates at risk[ J]. Ann Otolaryngol Chir Ceroicofac,2001,118 (1) :11.
9Gorgn M, Neely S, Bergman B, et al Otoacustic emissions from normal- hearing and hearing- impaired subject [J] . J Acoust Soc Am, 1993, 93 (4Pt 1): 2050.