He said his otitis media is hard to cure.
他说自己的中耳炎很难痊愈。
Objective: To establish the animal model of aero-otitis media.
目的：建立航空性中耳炎的动物研究模型。
Objective: To study the cause of intractable suppurative otitis media.
前言：目的：探讨难治性化脓性中耳炎的原因。
Objective: To investigate the relationship of surgical treatment and chronic otitis media with effusion.
目的：探讨鼓膜穿刺、切开、置管术等手术治疗与儿童慢性分泌性中耳炎之间的关系。
Objective: To investigate the relationship of surgical treatment and chronic otitis media with effusion.
目的：探讨鼓膜穿刺、切开、置管术等手术治疗与儿童慢性分泌性中耳炎之间的关系。
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