Your Query returns 8 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
KV11.1NM_18317910090MGC38990    Kcnv2    607604
Kv11.1BC0043119606HERG    LQT2    HERG1    ERG1    KCNH2    607604
Kv11.1NM_0002389606ERG1    HERG    LQT2    HERG1    KCNH2    607604
KV11.1NM_1334979606KCNV2    607604
Kv11.1NM_1720569606ERG1    HERG    LQT2    HERG1    KCNH2    607604
Kv11.1NM_1720579606ERG1    HERG    LQT2    HERG1    KCNH2    607604
KV11.1BC03904210090MGC38990    Kcnv2    607604
Kv11.1BC0019149606HERG    LQT2    HERG1    ERG1    KCNH2    607604

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

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Text2Knowledge ... Yong Huang 2002