3Ravicz ME, Rosowski J J, Merchant SN. Mechanisms of hear- ing loss resulting from middle - ear fluid [J]. Hearing Re- search, 2004,195:103.
4Piehichero ME. Diagnostic aaeeuracy, tympanocentesis ttrain- ing performance, and antibiotic selection by pediatric residentsin management of otitis media [J]. Pediatrics, 2002, 110: 61064.
5Pichichero ME,Poole MD. Comparison of performance by oto- laryngologists, pediatricians, and general practioners on an otoendoscopic diagnostic video examination[J]. International Journal of Pediatric Otorhinolaryngology, 2005,69 : 361.
6Abramson DH,Ahuamson AL,Coleman D. Ultrasonics in oto- laryngology. An aid in the diagnostics of middle ear fluid[J]. Archives of Otolaryngology, 1972,96 : 146.
7Alvord LS, Fine PG. Real-time B-scan ultrasound in mid- dle ear assessment[J]. J Ultrasound Med, 1990,9 : 91.
8Wu CH, Hsu CJ, Hsieh FJ. Preliminary use of endoluminal ultrasonography in assessment of middle ear with effusion[J]. JUM,1998,17:427.
9Discloo CM, Byrd MC, Bates T, et al. Ultrasonic detection of middle ear effusion: a preliminary study[J]. Arch Otolaryngol Head Neck Surg, 2004,130 : 1407.
10Seth R, Discolo CM, Palczewska GM,et al. Ultrasound char- acterization o{ middle ear effusion[J]. American Journal of O- tolaryngology, 2013,34 : 44.