Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PDGF-R-betaBC0322249606JTK12    CD140B    PDGFR1    PDGFR    PDGFRB   
PDGF-R-betaNM_0026099606JTK12    PDGFR    CD140B    PDGFR1    PDGFRB   

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

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Text2Knowledge ... Yong Huang 2002