Your Query returns 6 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
MEN2BBC0030729606HSCR1    MEN2A    MTC1    PTC    CDHF12    RET51    RET   
MEN2BBC0042579606HSCR1    MEN2A    MTC1    PTC    CDHF12    RET51    RET   
MEN2BNM_0003239606PTC    MTC1    HSCR1    MEN2A    RET51    CDHF12    RET   
MEN2BNM_0209759606PTC    MTC1    HSCR1    MEN2A    RET51    CDHF12    RET   
MEN2BNM_0206299606PTC    MTC1    HSCR1    MEN2A    RET51    CDHF12    RET   
MEN2BNM_0206309606PTC    MTC1    HSCR1    MEN2A    RET51    CDHF12    RET   

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

Google

Text2Knowledge ... Yong Huang 2002