grommets

n.

垫圈，索环(grommet的复数)；

Tympanosclerosis, grommets and shear stresses
Grommets and glue ear: a five-year follow up of a controlled trial
Grommets in otitis media with effusion: an individual patient data meta-analysis
Hearing loss in tympanosclerosis caused by grommets
Grommets (ventilation tubes) for hearing loss associated with otitis media with effusion in children
Secretory otitis media. Late results of treatment with grommets.
A 15 year follow-up of a controlled trial of the use of grommets in glue ear
Randomised controlled trial of the effect of ventilation tubes (grommets) on quality of life at age 1–2 years
Extracts from the Cochrane Library: "Grommets (ventilation tubes) for hearing loss associated with otitis media with effusion in chi...
Tympanosclerosis of the drum in secretory otitis after insertion of grommets. A prospective, comparative study.