Ventilations,Middle Ear

《英文msh詞典》Ventilations,Middle Ear
[入口詞] Ventilations,Middle Ear
[主題詞] Middle Ear Ventilation
[英文釋義] Ventilation of the middle ear in the treatment of secretory (serous) otitis media,usually by placement of tubes or grommets which pierce the tympanic membrane.

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