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A1 A2, AP negative Phox2b and Isl1 positive MoV neurons at E12.5. AP indicating Phox2b and Brn3b coexpression is present in peritrigeminal neurons (purple lines).
B1 B2 Coronal section at the level of the MoV showing mutual exclusive expression of Brn3b positive neurons and Isl1 positive motoneurons. Scale bars: A1,B2=50μm, A2,B2=500μm
