Tg(Drd1a-cre)2Gsc Tg(Drd1a-cre)AGsc Transgene http://identifiers.org/mgd/MGI:3761815 dr-1 Cre transgene D1Cre MGI:3761815 O transgene insertion A, Gunther Schutz D1Cre|Tg(Drd1a-cre)2Gsc|dr-1 Cre