Your Query returns 9 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ROAT1NM_0047909606OAT1    PAHT    HOAT1    MGC45260    SLC22A6   
ROAT1NM_1532769606OAT1    PAHT    HOAT1    MGC45260    SLC22A6   
ROAT1NM_1532779606OAT1    PAHT    HOAT1    MGC45260    SLC22A6   
ROAT1NM_1532789606OAT1    PAHT    HOAT1    MGC45260    SLC22A6   
ROAT1NM_1532799606OAT1    PAHT    HOAT1    MGC45260    SLC22A6   
ROAT1BC0336829606PAHT    HOAT1    MGC45260    OAT1    SLC22A6   
Roat1NM_01722410116Oat1    Paht    Orctl1    Slc22a6   
roat1AJ2428719986
ROAT1AF00822110116

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

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Text2Knowledge ... Yong Huang 2002