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  1. No Access

    Chapter

    Mastoid and Middle Ear Surgery

    Refractory secretory otitis media, without improvement after conservative treatments, such as antibiotics, eustachian tube inflation or previous tympanostomy alone.

    Pu Dai MD, Yue-shuai Song MD, Rui-li Yu MD… in Stereo Operative Atlas of Micro Ear Surgery (2017)

  2. No Access

    Chapter

    Inner Ear Surgery

    Unilateral or bilateral otosclerosis in which the average air-bone gap of four frequencies (500, 1000,2000,4000Hz) is 35 dB or more.

    Pu Dai MD, Jian-zhong Li MD, Fei Yu MD… in Stereo Operative Atlas of Micro Ear Surgery (2017)