targeted mutation 1a, Helmholtz Zentrum Muenchen GmbH Cyp26c1<tm1a(EUCOMM)Hmgu> EUCOMM-projects http://identifiers.org/mgd/MGI:5472572 HEPD0858_4_F03 MGI:5472572 HEPD0858_4_C01 HEPD0858_4_C02 HEPD0858_4_G04