Figure 1E. [doi:10.1002/dvdy.21380] Copyright: This image is from Urness LD; Li C; Wang X; Mansour SL, "Expression of ERK signaling inhibitors Dusp6, Dusp7, and Dusp9 during mouse ear development." Dev Dyn 2008 Jan; 237: 163-9. Reprinted with permission of Wiley-Liss Inc. [PMID:18058922] .