|Dataset||MPO Gene-Phenotype Associations|
|Category||disease or phenotype associations|
|Description||absence of the thin, tense membrane forming the greater part of the lateral wall of the tympanic cavity and separating it from the external acoustic meatus; the tympanic membrane constitutes the boundary between the external and middle ear (Mammalian Phenotype Ontology, MP_0006019)|
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2 gene mutations causing the absent tympanic membrane phenotype in transgenic mice from the MPO Gene-Phenotype Associations dataset.