Your Query returns 15 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Myh11NT_08235410090160745
Myh11NM_01360710090smMHC    160745
Myh11XM_23986610116
Myh11NW_04733110116
MYH11AF1519819606160745
MYH11AY4079559606160745
MYH11AY4079569598
MYH11AY40795710090160745
myh11X878339606160745
MYH11NM_0024749606SMHC    SMMHC    160745
MYH11NM_0228449606SMHC    SMMHC    160745
Myh11XM_14722810090160745
Myh11NT_03962410090160745
Myh11BC02614210090smMHC    160745
MYH11NT_0103939606160745

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

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Text2Knowledge ... Yong Huang 2002