http://identifiers.org/mgd/MGI:3615689 Tg(HBB-cre)1Fsh Tg(Atoh1-creESR1)14Fsh MGI:3615689 Math1-CreER<T2> O transgene insertion 14, Gordon Fishell Tg(Atoh1-cre/Esr1*)14Fsh transgene Tg(Atoh1-cre/ESR1)1Fsh Transgene Math1-CreER<T2>|Tg(HBB-cre)1Fsh|Tg(Atoh1-cre/ESR1)1Fsh|Tg(Atoh1-creESR1)14Fsh