3Yuceturk A V, Unlu H H ,Okumus M, et al. The evaluation of eustachian tube function in patients with chronic otitis media [J]. Clin Otolaryngol, 1997,22 (5) :449-452
2Labout JA,Duijts L,Lebon A,et al. Risk factors for otitis media in children with special emphasis on the role of colonization with bacterial airway pathogens :the Genera- tion R study[J]. Eur J Epidemiol, 2011,26 ( 1 ) : 61-66.
3Haggard M. Poor adherence to antibiotic prescribing guidelines in acute otitis media-obstacles,implications, and possible solutions[J]. Eur J Pediatr,2011,170(3) :323- 332.
4Fletcher MA,Fritzell B. Pneumococcal conjugate vaccines and otitis media:An appraisal of the clinical trials [J]. Scand J Prim Health Care, 2012,30 (3) : 163 - 168.