Your Query returns 7 Accession Numbers:
Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Lqt2NM_01356910090LQT    ERG1    M-erg    Merg1    Kcnh2    152427
LQT2BC0043119606HERG    Kv11.1    HERG1    ERG1    KCNH2    152427
LQT2NM_0002389606ERG1    HERG    HERG1    Kv11.1    KCNH2    152427
LQT2NM_1720569606ERG1    HERG    HERG1    Kv11.1    KCNH2    152427
LQT2NM_1720579606ERG1    HERG    HERG1    Kv11.1    KCNH2    152427
LQT2BC0019149606HERG    Kv11.1    HERG1    ERG1    KCNH2    152427
LQT2G317229606152427

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

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Text2Knowledge ... Yong Huang 2002