Your Query returns 18 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
hht2AL0220724896h3.2    SPBC8D2.04   
HHT2BC0426379606ALK-1    ALK1    ACVRLK1    HHT    ORW2    SKR3    ACVRL1    601284
HHT2NM_0000209606HHT    ALK1    ORW2    SKR3    ALK-1    ACVRLK1    ACVRL1    601284
hht2NC_0034234896SPBC8D2.04    h3.2   
HHT2M875045911
HHT2Z713064932
HHT2Z713074932
HHT2AF5200615478
HHT2AY5540004932
HHT2AY5540014932
HHT2AY5540024932
HHT2AY5540034932
HHT2AY5540044932
HHT2AY5540054932
HHT2AY5540064932
HHT2AY5540074932
HHT2AY5540084932
HHT2NC_0011464932

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

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Text2Knowledge ... Yong Huang 2002