Figure 1A - antisense. Copyright: This image is from Escalante-Alcalde D; Hernandez L; Le Stunff H; Maeda R; Lee HS; Jr-Gang-Cheng; Sciorra VA; Daar I; Spiegel S; Morris AJ; Stewart CL, Development 2003, 130: 4623-37 [doi:10.1242/dev.00635] and is displayed with the permission of The Company of Biologists who owns the copyright. [PMID:12925589]