http://identifiers.org/mgd/MGI:3809312 Inducible|Recombinase targeted mutation 1, Andreas Ludwig HCN4KiT-Cre Hcn4<tm1(cre/ESR1)Anlu> HCN4-KiT MGI:3809312 Hcn4<tm1(cre/ERT2)Anlu>