Your Query returns 10 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
etr-1BC0609237955etr1   
etr-1NM_1314947955etr1   
etr-1BC0577048355MGC68437   
etr-1U539316239
etr-1U804556239
ETR-1AJ2762942711
etr-1NC_0032806239T01D1.2a    T01D1.2b    T01D1.2c    CELK00392   
etr-1NM_0612726239T01D1.2a    T01D1.2b    T01D1.2c    CELK00392   
etr-1U168008355
etr-1AB0327257955

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002