Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
HAPLN1NM_0018849606CRTL1   
Hapln1BC06685310090LP   
HAPLN1BC0578089606CRTL1   
Hapln1NM_01350010090LP    Crtl1    Crtl1l   

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

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Text2Knowledge ... Yong Huang 2002