Table 1. List of studies on tympanometry with high- and low-frequency probe tones from 2001 to 2011.

Author	Title	Source	Year
Kei et al1	High-frequency (1,000 Hz) tympanometry in normal neonates	J Am Acad Audiol	2003
Margolis et al2	Tympanometry in newborn infants, 1-kHz norms	J Am Acad Audiol	2003
Baldwin7	Choice of probe tone and classification of trace patterns in tympanometry undertaken in early infancy	Int J Audiol	2006
Calandruccio et al31	Normative multifrequency tympanometry in infants and toddlers	J Am Acad Audiol	2006
Swanepoel et al29	Infant hearing screening at immunization clinics in South Africa	Int J Pediatr Otorhinolaryngol	2006
Alaerts et al15	Evaluation of middle ear function in young children: clinical guidelines for the use of 226- and 1,000-Hz tympanometry	Otol Neurotol	2007
Silva et al27	Tympanometry in neonates with normal otoacoustic emissions: measurements and interpretation	Rev Bras Otorrinolaringol	2007
Swanepoel et al8	High-frequency immittance for neonates: a normative study	Acta Otolaryngol	2007
Shahnaz et al6	Multifrequency tympanometry in neonatal intensive care unit and well babies	J Am Acad Audiol	2008
Garcia et al22	Acoustic immittance measures in infants with 226- and 1,000-Hz probes: correlation with otoacoustic emissions and otoscopy examination	Rev Bras Otorrinolaringol (Engl Ed)	2009
Zhiqi et al25	Tympanometry in infants with middle ear effusion having been identified using spiral computerized tomography	Am J Otolaryngology	2010
Camboim et al23	Comparative analysis of otoacoustic emissions with tympanometry in 0- to 6-mo infants	Revista CEFAC	2012
Tazinazzio et al24	Otoacoustic emissions and acoustic immittance measurements using 226-Hz and 1,000-Hz probe tones in neonates	Revista CEFAC	2011
Lewis et al30	A comparison of tympanometry with 226-Hz and 1,000-Hz probe tones in children with Down syndrome	Int J Pediatr Otorhinolaryngol	2011