Your Query returns 13 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
fbn2AF3006149031
fbn2AF3006159031
Fbn2NM_01018110090sy    sne    Fib-2    121050
Fbn2NW_04752610116
FBN2AY4145349606121050
FBN2AY4145359598
FBN2AY41453610090121050
FBN2NM_0019999606CCA    121050
fbn2L3979010090121050
Fbn2NT_08238110090121050
Fbn2S6935910095
FBN2NT_0347729606121050
Fbn2NM_03182610116

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

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Text2Knowledge ... Yong Huang 2002